Science, New Series, Vol. 69, No. 1775, Jan. 4, 1929


Previous Issue: New Series, Vol. 68, No. 1774, Dec. 28, 1928
Next Issue: New Series, Vol. 69, No. 1776, Jan. 11, 1929


Volume Information (8 pp.)
Front Matter (4 pp.)


The American Association for the Advancement of Science
A Great Telescope and Its Possibilities, pp. 1-8
Walter S. Adams


Scientific Events
Medallists of the Royal Society, pp. 8-9
Grants in Support of Research on the Effects of Radiations upon Organisms, pp. 9-10
W. C. Curtis
Officers of the American Association for the Advancement of Science, pp. 10-11


Scientific Notes and News, pp. 11-13
University and Educational Notes, pp. 13-14


Discussion and Correspondence
Maintaining the Standards and the Scientific Usefulness of the National Parks, pp. 14-15
Henry Baldwin Ward
The Molecular Scattering of Light, p. 15
J. Rud Nielsen
The Pronunciation and Spelling of Scientific Terms, p. 16
Duane Roller


Reports
Appropriations for the Department of Agriculture, pp. 16-17


Special Articles
On the Variation of Latitude with the Moon's Position, pp. 17-18
Harlan True Stetson


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 68, No. 1774, Dec. 28, 1928
Next Issue: New Series, Vol. 69, No. 1776, Jan. 11, 1929



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Science, New Series, Vol. 69, No. 1776, Jan. 11, 1929


Previous Issue: New Series, Vol. 69, No. 1775, Jan. 4, 1929
Next Issue: New Series, Vol. 69, No. 1777, Jan. 18, 1929


Front Matter (4 pp.)


American Association for the Advancement of Science
The Story of the Chemical Elements, pp. 19-27
Arthur A. Noyes


The Relation of Science to Industry, pp. 27-31
Robert A. Millikan

William North Rice, pp. 31-32
L. G. Westgate


Scientific Events
Paleolithic Discoveries in Northern Iraq, pp. 32-33
The Health Committee of the League of Nations, p. 33
Fellowships in Medicine of the National Research Council, pp. 33-34
G. Carl Huber
The Yale School of Medicine and the New Haven Hospital, p. 34
The Rockefeller Foundation, pp. 34-35


Scientific Notes and News, pp. 35-38
University and Educational Notes, p. 39


Discussion and Correspondence
Is This Science Or Metaphysics?, pp. 39-41
Yandell Henderson
Words and Life, pp. 41-43
H. A. Allard
An Experimentum Crucis in Diabetes, pp. 43-44
E. J. Witzemann
Two Additions to the Herpetological Fauna of Riley County, Kansas, p. 44
Howard K. Gloyd


Scientific Books
----------------, pp. 44-45
Études d'Histoire des Sciences Naturelles. I. De Linné à Jussieu. Méthodes de la classification et idée de série en botanique et en zoologie (1740-1790)
Henri Daudin
Review author[s]: Charles A. Kofoid


Reports
Registration in American Universities, pp. 45-47


Special Articles
On the Configurational Relationship of 3-Chlorobutyric and 3-Hydroxybutyric Acids, p. 47
P. A. Levene; H. L. Haller
The Spectrum of Doubly Ionized Potassium (K III), pp. 47-48
T. L. De Bruin
Variation in Size of Plastids in Genetic Strains of Zea Mays, p. 48
William H. Eyster


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1775, Jan. 4, 1929
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Previous Issue: New Series, Vol. 69, No. 1776, Jan. 11, 1929
Next Issue: New Series, Vol. 69, No. 1778, Special Issue Containing General Reports of the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Jan. 25, 1929


Front Matter (4 pp.)


The American Association for the Advancement of Science
The Relation of Statistics to Modern Mathematical Research, pp. 49-54
Dunham Jackson
The Increased Efficiency of American Agriculture, pp. 54-60
L. E. Call


The World's Two Greatest Petrified Forests, pp. 60-63
G. R. Wieland

Samuel Bonsall Parish, p. 63
W. L. Jepson


Scientific Events
The International Congress of Tropical Medicine, pp. 63-64
The Engineers Memorial at Louvain, p. 64
Storm Damage to the Experiment Stations in the West Indies and Florida, pp. 64-65
The Program of Research of the Corn-Borer Conference, p. 65
Program of the American Philosophical Society, pp. 65-66


Scientific Notes and News, pp. 66-69
University and Educational Notes, p. 69


Discussion and Correspondence
The Missing Link in Stellar Evolution, pp. 69-71
C. D. Perrine
Resonance Radiometry, pp. 71-72
A. H. Pfund
Hall Effect in Single Metal Crystal, p. 72
P. I. Wold
Dissociation of Neutral Vaccine Virus-Immune Serum Mixtures, p. 72
Perrin H. Long; Peter K. Olitsky
Prickly Pear Work, pp. 72-73
A. C. D. Rivett


Reports
The Influenza Epidemic, p. 73
Henry A. Christian; Theodore B. Appel; J. P. Leake; H. F. Vaughan; R. C. Williams; Haven Emerson


Scientific Apparatus and Laboratory Methods
Mounting Amphibia by Paraffin Infiltration, p. 74
Ralph G. Clausen


Special Articles
The Growth of Hookworm Larvae on Pure Cultures of Bacteria, pp. 74-75
Oliver R. McCoy
The Excitation of Luminescence by the Agitation of Mercury in Glass and Transparent Fused Silica Tubes and Vessels, pp. 75-78
W. L. Lemcke
The Inorganic Constituents of Milk, p. 78
Norman C. Wright; Jacob Papish


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1776, Jan. 11, 1929
Next Issue: New Series, Vol. 69, No. 1778, Special Issue Containing General Reports of the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Jan. 25, 1929



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Science, New Series, Vol. 69, No. 1778, Special Issue Containing General Reports of the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Jan. 25, 1929


Previous Issue: New Series, Vol. 69, No. 1777, Jan. 18, 1929
Next Issue: New Series, Vol. 69, No. 1779, Special Issue Containing Accounts of the Sessions of Sections and Societies at the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Feb. 1, 1929


Front Matter (1 p.)
The American Association for the Advancement of Science: General Reports of the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies, pp. 79-106

Previous Issue: New Series, Vol. 69, No. 1777, Jan. 18, 1929
Next Issue: New Series, Vol. 69, No. 1779, Special Issue Containing Accounts of the Sessions of Sections and Societies at the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Feb. 1, 1929



©2000-2007 JSTOR

Science, New Series, Vol. 69, No. 1779, Special Issue Containing Accounts of the Sessions of Sections and Societies at the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Feb. 1, 1929


Previous Issue: New Series, Vol. 69, No. 1778, Special Issue Containing General Reports of the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Jan. 25, 1929
Next Issue: New Series, Vol. 69, No. 1780, Feb. 8, 1929


Front Matter (9 pp.)
The American Association for the Advancement of Science: Accounts of the Sessions of Sections and Societies at the Fifth New York Meeting, pp. 107-131


Scientific Events
Memorial to Professors Bayliss and Starling, p. 131
The Centenary of the Zoological Society of London, p. 131
The Protection of Niagara Falls, pp. 131-132
Mountain Zoological Station of the University of Pennsylvania, p. 132
``Human Biology'', pp. 132-133
Raymond Pearl
Expedition of the Department of Tropical Research of the New York Zoological Society, p. 133
New Work on Cancer Undertaken by the American College of Surgeons, pp. 133-134


Scientific Notes and News, pp. 134-138
University and Educational Notes, p. 138
Science News, pp. xlvi+xlviii+l+lii

Previous Issue: New Series, Vol. 69, No. 1778, Special Issue Containing General Reports of the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Jan. 25, 1929
Next Issue: New Series, Vol. 69, No. 1780, Feb. 8, 1929



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Science, New Series, Vol. 69, No. 1780, Feb. 8, 1929


Previous Issue: New Series, Vol. 69, No. 1779, Special Issue Containing Accounts of the Sessions of Sections and Societies at the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Feb. 1, 1929
Next Issue: New Series, Vol. 69, No. 1781, Feb. 15, 1929


Front Matter (4 pp.)


The American Association for the Advancement of Science
The Geological History of the Antillean Region, pp. 139-145
Charles Schuchert
The Biological Article and the Obligations of Its Author, pp. 145-150
Clarence E. McClung


Henry Burchard Fine, pp. 150-151
W. F. M.

Harrison Gray Dyar, pp. 151-152
L. O. Howard


Scientific Events
The Breeding of Beneficial Parasites, p. 152
Mineral Production of the United States in 1928, pp. 152-153
The American Philosophical Society, p. 153
The Eclipse Expedition of the Naval Observatory, pp. 153-154
The Harvard University Expedition to Study Tropical Medicine in Yucatan, p. 154
The Administration Building of the Department of Agriculture, pp. 154-155


Scientific Notes and News, pp. 155-157
University and Educational Notes, pp. 157-158


Special Correspondence
The Geneva Summer School of Alpine Geology, pp. 158-160
Ruth Allen Doggett


Discussion
Science, Metaphysics and Blood, pp. 161-163
Raymond Pearl
The 1928 Silliman Lectures, p. 163
Donald D. Van Slyke
The Apportionment Situation in Congress, pp. 163-165
Walter F. Willcox
``Unprofitable Meteors'' Pay Large Dividends, pp. 165-166
Chas. P. Olivier
Terminology of ``Vitamin B'', pp. 166-167
E. C. Van Leersum
Ultra-Violet Exhibits, p. 167
F. C. Brown


Special Articles
A Preliminary Report upon the Utilization of the Spectrophotometer in the Determination of Minute Amounts of Aluminum, pp. 167-170
E. W. Schwartze; Raymond M. Hann
Isolation by Cataphoresis of Virus from Vaccinia-Recovered Rabbits, p. 170
Peter K. Olitsky; Perrin H. Long


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1779, Special Issue Containing Accounts of the Sessions of Sections and Societies at the Fifth New York Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Feb. 1, 1929
Next Issue: New Series, Vol. 69, No. 1781, Feb. 15, 1929



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Science, New Series, Vol. 69, No. 1781, Feb. 15, 1929


Previous Issue: New Series, Vol. 69, No. 1780, Feb. 8, 1929
Next Issue: New Series, Vol. 69, No. 1782, Feb. 22, 1929


Front Matter (4 pp.)


The American Association for the Advancement of Science
Some Aspects of Research in the Field of Engineering and Its Financial Support, with Particular Reference to Civil Engineering and Related Fields, pp. 171-175
Arthur N. Talbot


Cellular Division in Relation to Cancer, pp. 175-177
Ellice McDonald

John Merle Coulter, pp. 177-180
Geo. D. Fuller


Scientific Events
Biological Abstracts, p. 180
Burton E. Livingston
Mechanical Standards Advisory Council, pp. 180-181
The Southern California Rift Club, p. 181
The Rio Grande National Forest, pp. 181-182
Refuges for Migratory Birds, p. 182
Award of the Lamme Medal, pp. 182-183


Scientific Notes and News, pp. 183-185
University and Educational Notes, pp. 185-186


Discussion
On the Presence of Aluminum in Plant and Animal Matter, p. 186
Louis Kahlenberg; John O. Closs
To Demonstrate the Course of Sap Ascent in Plants, pp. 186-187
George J. Peirce
Ring Methods for Surface Tension Measurements, pp. 187-188
N. Ernest Dorsey
Possible Water Supply for the Creation of Channeled Scab Lands, pp. 188-190
H. T. Harding
Blood Relationship within the Order Rodentia, pp. 190-191
Robert A. Hicks
Luminescence, p. 191
Louis F. Brown


Special Correspondence
The Danish Circumnavigation Expedition, pp. 191-194
Å. V. Tåning


Reports
Bathygenetic and Orogenetic Movements, pp. 194-195
Joseph L. Gillson


Scientific Apparatus and Laboratory Methods
A Location Finder for Microscopes, pp. 195-196
Jean Broadhurst
Laboratory Incubator for the Biological Study of Chick Embryo, pp. 197-198
Alexis L. Romanoff


Special Articles
Mendelism Among Bacteria?, pp. 198-200
F. Martin Brown; Hazel M. Heffron
Cod-Liver Oil and the Antimony Trichloride Reaction for Vitamin A, p. 200
Philip B. Hawk


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1780, Feb. 8, 1929
Next Issue: New Series, Vol. 69, No. 1782, Feb. 22, 1929



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Science, New Series, Vol. 69, No. 1782, Feb. 22, 1929


Previous Issue: New Series, Vol. 69, No. 1781, Feb. 15, 1929
Next Issue: New Series, Vol. 69, No. 1783, Mar. 1, 1929


Front Matter (4 pp.)


The American Association for the Advancement of Science
The Outlook for Psychology, pp. 201-207
Knight Dunlap


Frederick Cheever Shattuck, pp. 207-209
Walter B. Cannon; Henry A. Christian; Richard P. Strong


Scientific Events
British Solar Eclipse Expeditions, p. 209
The Forestry Prize, pp. 209-210
P. G. Redington
Walter Rathbone Bacon Scholarship, p. 210
C. G. Abbot
Research on the Alloys of Iron, pp. 210-211
Chemical Education at the Johns Hopkins University, p. 211


Scientific Notes and News, pp. 211-215
University and Educational Notes, pp. 215-216


Discussion
Note on the Geologic Age of Pithecanthropus and Eoanthropus, pp. 216-217
Henry Fairfield Osborn
Group Theory and Applied Mathematics, p. 217
G. A. Miller
The Movement of Sap in Plants, pp. 217-218
H. Molisch
Stomata Which Show Functional Movement for a Century, pp. 218-219
Frances L. Long
Press Service, pp. 219-220
Austin H. Clark
Book Reviews in Science, pp. 220-222
J. McKeen Cattell


Special Correspondence
The Princeton-Buffalo Expedition to the West Indies, pp. 222-223
Richard M. Field; Charles J. Fish


Scientific Books
----------------, pp. 223-224
The Normal and Pathological Physiology of Bone
R. Leriche; A. Policard
Review author[s]: E. V. Cowdry
----------------, pp. 224-225
Locusts and Grasshoppers: A Handbook for Their Study and Control
B. P. Uvarov
Review author[s]: L. O. Howard


Scientific Apparatus and Laboratory Methods
Illumination of Anatomical Preparations, pp. 225-226
Ann Morgan
Controlling Damping-Off with Electric Lamps, p. 226
Victor A. Tiedjens


Special Articles
Cinematographs of Living Developing Rabbit-Eggs, pp. 226-229
Warren H. Lewis; P. W. Gregory
Detection of the Isotopes of Lead by the Band Spectrum Method, p. 229
Sidney Bloomenthal


Societies and Academies, p. 230
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1781, Feb. 15, 1929
Next Issue: New Series, Vol. 69, No. 1783, Mar. 1, 1929



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Science, New Series, Vol. 69, No. 1783, Mar. 1, 1929


Previous Issue: New Series, Vol. 69, No. 1782, Feb. 22, 1929
Next Issue: New Series, Vol. 69, No. 1784, Mar. 8, 1929


Front Matter (4 pp.)
Pleistocene Glaciations of the Northern Hemisphere, pp. 231-239
Frank Leverett


Scientific Events
The Lengthened Life of the German Population, p. 239
The Use of Ethyl Gasoline as Motor Fuel, pp. 239-240
The Fifty-Third Anniversary of the Founding of the Johns Hopkins University, pp. 240-241
National Research Fellowships in the Biological Sciences, p. 241
Frank R. Lillie
Memorial to Charles W. Hargitt, pp. 241-242


Scientific Notes and News, pp. 242-244
University and Educational Notes, pp. 244-245


Discussion
The Planetesimal Hypothesis, pp. 245-248
Harold Jeffreys; F. R. Moulton
Euler's Tensor and Hamilton's Cubic, p. 248
Carl Barus
Notice to Zoologists on the Possible Suspension of the Rules in the Case of Nycteribia Latreille, p. 248
C. W. Stiles


Special Correspondence
Einstein's Appreciation of Simon Newcomb, pp. 248-249
Frederick E. Brasch


Scientific Books
----------------, pp. 249-250
Moss Flora of North America
A. J. Grout
Review author[s]: G. E. Nichols
----------------, p. 250
Special Cytology
E. V. Cowdry
Review author[s]: Warren H. Lewis


Scientific Apparatus and Laboratory Methods
An Improved Method of Palm-Printing, pp. 250-251
A. McI. Strong
A Device for Measuring Surface Tension Automatically, pp. 251-252
Lecomte du Noüy


Special Articles
Intranuclear Inclusions in Yellow Fever, pp. 252-253
E. V. Cowdry; S. F. Kitchen
Will the Adult Firefly Luminesce If Its Larval Organs are Entirely Removed?, pp. 253-254
E. Newton Harvey; Robert T. Hall
Plasmopara Mildew of Sunflower, p. 254
P. A. Young; W. L. Jellison; H. E. Morris


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1782, Feb. 22, 1929
Next Issue: New Series, Vol. 69, No. 1784, Mar. 8, 1929



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Science, New Series, Vol. 69, No. 1784, Mar. 8, 1929


Previous Issue: New Series, Vol. 69, No. 1783, Mar. 1, 1929
Next Issue: New Series, Vol. 69, No. 1785, Mar. 15, 1929


Front Matter (4 pp.)
Meteorology's Frozen Assets, pp. 255-259
W. J. Humphreys

High Frequency Radiation of the X-Ray Type, pp. 259-263
Ernest Rutherford


Scientific Events
The National Research Council of Italy, p. 263
A Belgian Royal Colonial Institute, pp. 263-264
Plant Exploration in Madagascar, p. 264
A Proposed National Monument in the Bad Lands of South Dakota, pp. 264-265
The World's Engineering Congress, p. 265
President Hoover on Education and Public Health, pp. 265-266


Scientific Notes and News, pp. 266-269
University and Educational Notes, p. 269


Discussion
Biological Publication in America, pp. 269-271
Maynard M. Metcalf
Evolution, p. 271
Austin H. Clark
Amia from the Cretaceous, pp. 271-272
David Starr Jordan
Misuse of Scientific References in Commercial Advertising, p. 272
M. Bodansky
Importation of Cinematographic Films, p. 272
Warren H. Lewis
Reply to Professor Willcox, p. 272
Edward V. Huntington


Special Correspondence
Geological Work in Tonga and Fiji, pp. 272-273
H. S. Ladd; J. E. Hoffmeister


Scientific Books
----------------, pp. 273-275
Our Federal Lands
Robert Sterling Yard
Review author[s]: Henry B. Ward
----------------, pp. 275-276
Pflanzensoziologie; Grundzüge der Vegetationskunde
J. Braun-Blanquet
Review author[s]: John W. Harshberger


Reports
Vitamin B Terminology, p. 276
Atherton Seidell; H. C. Sherman; P. A. Levene; Harry Steenbock; E. V. McCollum; R. Adams Dutcher


Scientific Apparatus and Laboratory Methods
An Improved Method for Sealing Microscopic Mounts, pp. 276-277
William W. Diehl


Special Articles
Crystalline Turanose, p. 278
C. S. Hudson; Eugen Pacsu
The pH of the White as an Important Factor Influencing the Keeping Quality of Hens' Eggs, pp. 278-280
Paul F. Sharp


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1783, Mar. 1, 1929
Next Issue: New Series, Vol. 69, No. 1785, Mar. 15, 1929



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Science, New Series, Vol. 69, No. 1785, Mar. 15, 1929


Previous Issue: New Series, Vol. 69, No. 1784, Mar. 8, 1929
Next Issue: New Series, Vol. 69, No. 1786, Mar. 22, 1929


Front Matter (4 pp.)


The American Association for the Advancement of Science
The Scientific Retrospect, pp. 281-287
H. H. Turner


Research Standards in Animal Husbandry, pp. 287-289
C. B. Hutchison

Alfred Maurice Wakeman, p. 289
John P. Peters


Scientific Events
The Faraday Centenary, pp. 289-290
The Henry Lester Institute and Hospital, pp. 290-291
The Eradication of Leprosy in the Philippines, p. 291
An Agricultural Survey, p. 291
Motion Picture Films of Mexican Oil Fields, p. 292


Scientific Notes and News, pp. 292-295
University and Educational Notes, pp. 295-296


Discussion
The Spectrum of the Aurora Borealis, pp. 296-297
Joseph Kaplan
Sounds Reported Accompanying the Fall of a Meteor, pp. 297-298
E. H. Sellards
Observations of Green Flash, pp. 298-299
Jno. A. Fleming
Winter Activity of the Roots of Perennial Weeds, pp. 299-300
Charles F. Rogers
An Artist Looks at Gordonia, pp. 300-301
Edward S. Shorter
Anti-Evolution in New England, p. 301
Barrington Moore
An Anti-Vivisection Screed, p. 301
W. W. Keen


Special Correspondence
The Study of Geology by Aeroplane, pp. 301-302
Arthur J. Tieje


Scientific Books
The Opus Majus of Roger Bacon, pp. 302-304
The Opus Majus of Roger Bacon
Robert Belle Burke
Review author[s]: Paul R. Heyl


American Association of Physical Anthropologists, pp. 304-305
Aleš Hrdlička


Special Articles
Circuit Transmission and Interference of Activation Waves in Living Tissues and in Passive Iron, pp. 305-308
Ralph S. Lillie


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1784, Mar. 8, 1929
Next Issue: New Series, Vol. 69, No. 1786, Mar. 22, 1929



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Science, New Series, Vol. 69, No. 1786, Mar. 22, 1929


Previous Issue: New Series, Vol. 69, No. 1785, Mar. 15, 1929
Next Issue: New Series, Vol. 69, No. 1787, Mar. 29, 1929


Front Matter (4 pp.)


The American Association for the Advancement of Science
The Organization of Scientific Research in Industry, pp. 309-312
F. B. Jewett; Willis R. Whitney; L. V. Redman
Research in the Engineering Colleges, pp. 312-318
W. E. Wickenden


The Doctor of Philosophy and His Business, pp. 318-321
J. Paul Goode


Scientific Events
The Imperial Chemical House in London, p. 321
The Neurological Institute of New York, pp. 321-322
The Columbus Meeting of the American Chemical Society, pp. 322-323
The Hayden Memorial Geological Award, p. 323
Farewell Dinner for Secretary Jardine, p. 323
The Retirement of Mr. Frank Leverett, p. 323


Scientific Notes and News, pp. 324-326
University and Educational Notes, pp. 326-327


Discussion
What is the Type of a Genus?, pp. 327-328
E. B. Copeland
Biological Control of the Prickly Pear, pp. 328-329
T. D. A. Cockerell
The Smallest Living Vertebrate, pp. 329-330
Albert W. Herre
The Hydrogen-Ion Concentration of the Blood in Cancer, p. 330
H. O. Nolan
Isogram Vs. Isontic, p. 330
Alfred C. Lane; Eric R. Miller


Quotations
A Descendant of John Hunter, pp. 330-331


Special Correspondence
The Puget Sound Biological Station, pp. 331-332
Charles J. Chamberlain
The American Medical Association of Vienna, p. 332
Ralph A. Reynolds


Scientific Apparatus and Laboratory Methods
An Improved Chronograph, pp. 332-333
Alvah R. McLaughlin
Methods of Collecting Carcasses, pp. 333-334
R. A. Johnson


Special Articles
The Function of the Air Sacs in Holopneustic Insects, pp. 334-335
Milton O. Lee
Composition of Bone, VII. Equilibration of Serum Solutions with CaHPO4, pp. 335-336
M. J. Shear; Martha Washburn; Benjamin Kramer
Action of Hydrogen Sulfide on the Protoplasm of Amoeba Proteus, p. 336
Floyd J. Brinley


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1785, Mar. 15, 1929
Next Issue: New Series, Vol. 69, No. 1787, Mar. 29, 1929



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Science, New Series, Vol. 69, No. 1787, Mar. 29, 1929


Previous Issue: New Series, Vol. 69, No. 1786, Mar. 22, 1929
Next Issue: New Series, Vol. 69, No. 1788, Apr. 5, 1929


Front Matter (4 pp.)


The American Association for the Advancement of Science
The American Negro, pp. 337-341
Robert J. Terry


The Agricultural Experiment Station--An Institute for Fundamental Research in Rural Affairs, pp. 341-346
E. M. Freeman


Scientific Events
The Study of Agriculture in New York State, pp. 346-347
The `` Sloth Pit '' in New Mexico, p. 347
Research on Deafness, pp. 347-348
The Toronto Meeting of the American Electrochemical Society, p. 348
Research in Agricultural Chemistry, p. 348
The Fiftieth Anniversary of the U. S. Geological Survey, p. 349


Scientific Notes and News, pp. 349-352
University and Educational Notes, pp. 352-353


Discussion
The Interaction of Matter and Radiation, pp. 353-354
Gordon F. Hull
A Factor in the Problem of Biological Publications, p. 355
J. R. DE LA Torre-Bueno
The Alleged Scarcity of Research Men, pp. 355-356
F. L. O. Wadsworth
Crepis Reuteriana and Its Chromosomes, p. 356
E. B. Babcock; Lillian Hollingshead
Thrips as Carriers of Fig-Decaying Organisms, pp. 356-357
H. N. Hansen
Galba Bulimoides Lea an Intermediate Host of Fasciola Hepatica in Oregon, p. 357
J. N. Shaw; B. T. Simms
The Radioactivity of Light Elements, p. 357
James M. Hendel
Raman Scattering from Hci Liquid, p. 357
E. O. Salant; A. Sandow
Professor Huntington's Method in Controversy, pp. 357-358
Walter F. Willcox


Quotations
Industries and Research, pp. 358-359


Scientific Apparatus and Laboratory Methods
The Use of ``Dry Ice'' Or Solid Carbon Dioxide as a Laboratory Refrigerant, pp. 359-360
Stuart Dunn
The Use of Solid Carbon Dioxide in Making Freezing-Point Determinations with Plant Juices, p. 360
L. P. Latimer


Special Articles
Series in the Arc Spectrum of Bromine, pp. 360-361
T. L. DeBruin; C. C. Kiess
On the Biological Effects of X-Rays, p. 361
H. K. Svenson
Control of the Cotton Boll Weevil by Insect Enemies, pp. 361-362
Edgar F. Grossman


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1786, Mar. 22, 1929
Next Issue: New Series, Vol. 69, No. 1788, Apr. 5, 1929



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Science, New Series, Vol. 69, No. 1788, Apr. 5, 1929


Previous Issue: New Series, Vol. 69, No. 1787, Mar. 29, 1929
Next Issue: New Series, Vol. 69, No. 1789, Apr. 12, 1929


Front Matter (4 pp.)


The Association of American Anatomists
The Trend of Morphology, pp. 363-372
C. R. Stockard


Scientific Events
The National Park System, p. 372
Appropriations for the Research Work of the Department of Agriculture, pp. 372-373
The American Museum of Natural History, p. 373
The Milton Awards for Research at Harvard University, pp. 373-374
Testimonial to Dean Kimball, of Cornell University, pp. 374-375
The Pacific Division of the American Association for the Advancement of Science, p. 375


Scientific Notes and News, pp. 375-378
University and Educational Notes, pp. 378-379


Discussion
Classification of the Pleistocene of California, pp. 379-380
Robert T. Hill
Meier-Seashore Art Judgment Test, p. 380
Carl E. Seashore
The Problem of the Interaction of Radiation and the Electron, pp. 380-381
R. D. Kleeman
Mosaic of Sugar-Cane in Peru, p. 381
E. V. Abbott; George N. Wolcott


Quotations
Congress Honors the Yellow Fever Commission, pp. 381-382


Scientific Apparatus and Laboratory Methods
Some Useful Petrographic Methods, p. 382
Charles Milton
Recording by Perforating, pp. 382-383
Milton Metfessel


Special Articles
The Stimulation of Metabolism by Alcohol, pp. 383-384
L. D. Seager; D. J. Verda; W. E. Burge
A Relation between the Mean Distances of the Planets from the Sun, p. 384
A. E. Caswell


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1787, Mar. 29, 1929
Next Issue: New Series, Vol. 69, No. 1789, Apr. 12, 1929



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Science, New Series, Vol. 69, No. 1789, Apr. 12, 1929


Previous Issue: New Series, Vol. 69, No. 1788, Apr. 5, 1929
Next Issue: New Series, Vol. 69, No. 1790, Apr. 19, 1929


Front Matter (5 pp.)
The Work of Thomas Burr Osborne (1859-1929), pp. 385-389
Hubert B. Vickery; Lafayette B. Mendel

The Objectives of Undergraduate Courses in Physics for Engineering Students, pp. 389-392
William S. Franklin


Scientific Events
Increase of National Forest Units, pp. 392-393
Institute of Tropical Medicine at the University of California, p. 393
Census of Migratory Waterfowl, pp. 393-394
Anthropological Scholarships, p. 394
Fay-Cooper Cole; R. B. Dixon; A. V. Kidder
Summer Meetings of the Botanical Society of America, p. 395
L. W. Sharp


Scientific Notes and News, pp. 395-398
University and Educational Notes, p. 399


Discussion
Criteria of Hybridity, pp. 399-400
C. Leonard Huskins
Observations on the Synchronous Flashing of Fireflies in Siam, pp. 400-401
T. F. Morrison
The Keeping Quality of Hens' Eggs, p. 401
O. S. Rask
Isopleth, p. 402
Harold S. Palmer
General Factors in a Table of Intercorrelations, p. 402
M. Rosa McDonough


Quotations
The Elgin Botanic Garden, pp. 402-403


Scientific Books
----------------, p. 403
The Fishes of Oceania
Henry W. Fowler
Review author[s]: S. C. B.


Scientific Apparatus and Laboratory Methods
A Three-Dimensional Thermo-Isopleth, pp. 404-405
Guy-Harold Smith
A Method for Purification of Extracts Containing the Growth-Promoting Principle of the Anterior Hypophysis, pp. 405-406
Harold M. Teel


Special Articles
The First Spectrum of Xenon, p. 406
William F. Meggers; T. L. DE Bruin; C. J. Humphreys
Development of the Mouse Adrenal, pp. 406-407
E. Howard Miller
Structure of Plant Compounds and Solubility, pp. 407-408
R. H. Carr


Science News, pp. x+xii+xiv+xvi

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Science, New Series, Vol. 69, No. 1790, Apr. 19, 1929


Previous Issue: New Series, Vol. 69, No. 1789, Apr. 12, 1929
Next Issue: New Series, Vol. 69, No. 1791, Apr. 26, 1929


Front Matter (4 pp.)


The Fiftieth Anniversary of the U. S. Geological Survey
Science in the Government, pp. 409-410
Ray Lyman Wilbur
Thomas Jefferson, the Pioneer of American Paleontology, pp. 410-413
Henry Fairfield Osborn


The Potentialities of Entomology, pp. 413-418
Royal N. Chapman


Scientific Events
The New Harvard Chemical Laboratories, pp. 418-419
The Southwest Arboretum of the Boyce Thompson Institute for Plant Research, p. 419
The Fifth International Botanical Congress, pp. 419-420
Symposia on Theoretical Physics and Chemical Kinetics, p. 420


Scientific Notes and News, pp. 420-424
University and Educational Notes, pp. 424-425


Discussion and Correspondence
Is Life Quantity?, pp. 425-427
William E. Ritter
Hermaphroditism in Arbacia, p. 427
L. V. Heilbrunn
Microphotograph Or Photomicrograph?, pp. 427-428
G. H. Godfrey
When is Normal Normal?, p. 428
O. L. Tinklepaugh


Scientific Books
----------------, pp. 428-431
Scientific Papers of William Bateson
R. C. Punnett
Review author[s]: W. E. Castle


The American Geophysical Union, pp. 431-432
Jno. A. Fleming


Scientific Apparatus and Laboratory Methods
The In Vivo Cultivation of Intestinal Protozoa in Parasite-Free Chicks, pp. 432-434
Robert Hegner


Special Articles
Is the Twelve-Hour Variation in Atmospheric Pressure an Electric Phenomenon?, pp. 434-436
Fernando Sanford


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1789, Apr. 12, 1929
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Science, New Series, Vol. 69, No. 1791, Apr. 26, 1929


Previous Issue: New Series, Vol. 69, No. 1790, Apr. 19, 1929
Next Issue: New Series, Vol. 69, No. 1792, May 3, 1929


Front Matter (4 pp.)
The Present and Future State of Our Natural Resources, pp. 437-445
F. M. Jaeger

A Master Museum Builder, pp. 445-446
Chas. Haskins Townsend


Scientific Events
Soil Erosion, pp. 446-447
Gifts for the Study of Deafness, p. 447
The Einstein Birthday Celebration, pp. 447-448
The American Philosophical Society, p. 448


Scientific Notes and News, pp. 448-452
University and Educational Notes, pp. 452-453


Discussion
Claude Bernard's Conception of the Internal Environment, pp. 453-454
J. S. Haldane
Metabolic Acidity or Alkalinity of Foods, p. 454
Raymond Hertwig
The Occurrence of Bothrioplana in the United States, p. 454
J. S. Carter
An Unusual Source of Living Material, pp. 454-455
C. T. Hurst


Quotations
Dormitory of the New York Medical Center, p. 455


Scientific Books
----------------, pp. 455-457
The Ways of Behaviorism
John B. Watson
Psychological Care of Infant and Child
John B. Watson
The Battle of Behaviorism
John B. Watson; Wm. McDougall
Review author[s]: Joseph Jastrow


Scientific Apparatus and Laboratory Methods
The Analysis of Dilute Solutions of Methyl Alcohol, pp. 457-458
S. S. Kistler
A Simple Burner for Natural Gas, p. 458
C. Reynolds


Special Articles
Glutathione in Plants, p. 458
W. H. Camp


Science News, pp. x+xii+xiv

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Previous Issue: New Series, Vol. 69, No. 1791, Apr. 26, 1929
Next Issue: New Series, Vol. 69, No. 1793, May 10, 1929


Front Matter (4 pp.)


The American Association for the Advancement of Science
The Application of Science to the Practice of Medicine, pp. 459-462
G. Canby Robinson


A Note upon the Probable Mode of Evolution, pp. 462-465
W. H. Longley


Scientific Events
The Gorgas Memorial Institute, p. 465
Memorial to Dr. Salmon, pp. 465-466
The Medals of the Franklin Institute, p. 466
Presentation of the John Fritz Medal to President Hoover, pp. 466-467


Scientific Notes and News, pp. 467-470
University and Educational Notes, pp. 470-471


Discussion
The Report of the National Academy of Sciences on Reapportionment, pp. 471-473
Edward V. Huntington
The Rate of Work Done by a Ricksha-Coolie, pp. 473-474
Adolph Basler
Chemical ``Tests'', p. 474
J. L. St. John
Atmospheric Electricity during Sand Storms, pp. 474-475
R. H. Canfield


Scientific Books
----------------, pp. 475-476
Life and Work of Sir Norman Lockyer
T. Mary Lockyer
Review author[s]: Ida Barney
----------------, p. 476
Lebenslinien. Eine Selbstbiographie
Wilhelm Ostwald
Review author[s]: Benjamin Harrow


Societies and Academies, p. 477


Scientific Apparatus and Laboratory Methods
A Simplified Digital Sphygmograph, pp. 477-478
Francis Marsh Baldwin
An Economical Laboratory Table Light, p. 478
A. M. Reese


Special Articles
Photoionization of Caesium Vapor, p. 479
F. L. Mohler; C. Boeckner; R. Stair; W. W. Coblentz
Hemoglobin Maintenance upon Synthetic Diets, p. 480
David L. Drabkin; C. Stanley Waggoner


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1791, Apr. 26, 1929
Next Issue: New Series, Vol. 69, No. 1793, May 10, 1929



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Science, New Series, Vol. 69, No. 1793, May 10, 1929


Previous Issue: New Series, Vol. 69, No. 1792, May 3, 1929
Next Issue: New Series, Vol. 69, No. 1794, May 17, 1929


Front Matter (4 pp.)
Michelson's Economic Value, pp. 481-485
Robert A. Millikan

Meteor Crater Exploration, pp. 485-487
Herman L. Fairchild


Scientific Events
Agricultural Research Bureaus in Great Britain, pp. 487-488
U. S. Biological Survey, p. 488
The National Arboretum, p. 488
Gifts for Medical Research at New York University and Bellevue Hospital Medical College, p. 489
Physical Laboratories of the University of Chicago, p. 489
The Fiftieth Anniversary of the Incandescent Light and Mr. Edison, pp. 489-490


Scientific Notes and News, pp. 490-494
University and Educational Notes, p. 494


Discussion
On the Phylogeny of Horses, Dogs and Cats, pp. 494-496
W. D. Matthew
The Practical Significance of Increasing the Daily Light Period of Winter for Strawberry Breeding, pp. 496-497
George M. Darrow; George F. Waldo
The Precise Expression of ``Dryness'', p. 497
C. G. Bates
The Stoning of a Minor Prophet, pp. 497-498
P. B. S.


Scientific Books
----------------, pp. 498-499
Conditioned Reflexes
I. P. Pavlov
Lectures on Conditioned Reflexes
Ivan Petrovitch Pavlov
Review author[s]: A. J. Carlson
----------------, pp. 499-500
The Story of the Moon
Garrett P. Serviss
Review author[s]: Carolyn Gesler


Scientific Apparatus and Laboratory Methods
The Dissection of the Spiral Valve of Squalus Acanthias, p. 500
Charles E. Hadley


Special Articles
X-Rays and Mutations, pp. 500-501
James W. Mavor
The Occurrence of Podsol Soils in Quebec Province, pp. 501-502
R. R. McKibbin


The National Academy of Sciences, pp. 502-504
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1792, May 3, 1929
Next Issue: New Series, Vol. 69, No. 1794, May 17, 1929



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Science, New Series, Vol. 69, No. 1794, May 17, 1929


Previous Issue: New Series, Vol. 69, No. 1793, May 10, 1929
Next Issue: New Series, Vol. 69, No. 1795, May 24, 1929


Front Matter (4 pp.)
Some Physical Problems in the Field of Medicine, pp. 505-509
Horatio B. Williams

The Mechanism of Spark Discharge in Air at Atmospheric Pressure, pp. 509-512
Leonard B. Loeb

Research at Mellon Institute during 1928-29, pp. 512-513
Lawrence W. Bass


Scientific Events
The Italian Academy, p. 513
Explorations in Alaska, pp. 513-514
The New Policies of the Indian Bureau, p. 514
A Homeopathic Medical Center, pp. 514-515
Professional Salaries, p. 515


Scientific Notes and News, pp. 515-519
University and Educational Notes, pp. 519-520


Discussion
Ambitious Agronomy, pp. 520-521
K. F. Kellerman
The European Starling in Illinois, pp. 521-522
Frank Collins Baker
Dispersed Stages of the Stigma in Euglena, p. 522
R. P. Hall; T. L. Jahn
Vibrations and Particles, p. 523
W. H. Pickering


Quotations
The Centenary of the London Zoological Garden, pp. 523-524


Scientific Apparatus and Laboratory Methods
An Apparatus for the Study of Matforming Fungi in Culture Solutions, pp. 524-525
Raimund H. Marloth


Special Articles
Strains of the Dog Hookworm, Ancylostoma Caninum, Specific to the Dog and to the Cat, p. 526
J. Allen Scott
Hetero-Fertilization in Maize, pp. 526-527
George F. Sprague


The National Academy of Sciences. II, pp. 527-530
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1793, May 10, 1929
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Previous Issue: New Series, Vol. 69, No. 1794, May 17, 1929
Next Issue: New Series, Vol. 69, No. 1796, May 31, 1929


Front Matter (4 pp.)
International Chemistry, pp. 531-536
Austin M. Patterson

The Formal Opening of Darwin's House at down, June 7, 1929, pp. 536-538
Henry Fairfield Osborn


Scientific Events
Research Reserves in the National Forests, p. 538
Expedition for the Study of Gorillas, pp. 538-539
The Aeronautic Meeting at St. Louis, p. 539
The Twenty-Fifth Anniversary of the Carnegie Institution of Washington, p. 540
The Non-Resident Lectureship in Chemistry of Cornell University, pp. 540-541


Scientific Notes and News, pp. 541-544
University and Educational Notes, p. 544


Discussion
The Fall Zone Peneplane, pp. 544-545
Henry S. Sharp
Mortensen's Cidaroidea, p. 546
Robert Tracy Jackson
Cosmos Unlimited, pp. 546-547
J. G. Porter
Chemical Training, p. 547
Marion Talbot


Special Correspondence
Opportunities for Research Offered at the Biological Laboratories of the Bureau of Fisheries, pp. 547-549
Henry O'Malley


Scientific Books
----------------, pp. 549-550
Hydraulic Laboratory Practice
John R. Freeman
Review author[s]: Herbert N. Eaton


Scientific Apparatus and Laboratory Methods
An Improved Thermopile Vessel for the Electrometric Determination of the Volume Flow of Blood, pp. 550-551
Robert Gesell
An Enclosed Drop Method of Recording Volume Flow of Fluids by Oil Displacement, p. 551
Robert Gesell


Special Articles
Loveland Loess: Pre-Illinoian, Pre-Iowan in Age, pp. 551-552
Frank Leverett
On the Rotatory Power of Serum, pp. 552-553
P. Lecomte du Noüy
Inheritance in Lettuce, pp. 553-554
Charles E. Durst


The National Academy of Sciences. III, pp. 554-556
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1794, May 17, 1929
Next Issue: New Series, Vol. 69, No. 1796, May 31, 1929



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Science, New Series, Vol. 69, No. 1796, May 31, 1929


Previous Issue: New Series, Vol. 69, No. 1795, May 24, 1929
Next Issue: New Series, Vol. 69, No. 1797, Jun. 7, 1929


Front Matter (4 pp.)
Edgar Fahs Smith, Chemist, pp. 557-565
Marston Taylor Bogert


Scientific Events
A British National Radium Fund, p. 565
Cooperation in Fisheries Research, pp. 565-566
Information on International Congresses to Be Held in 1930, pp. 566-567
A. S. Hitchcock
Symposium on Physiology and Biochemistry, p. 567
Elections to the American Academy of Arts and Sciences, pp. 567-568


Scientific Notes and News, pp. 568-572
University and Educational Notes, pp. 572-573


Discussion
Remarks on Uncertainty Principles, pp. 573-574
E. U. Condon
Honorary Degrees and a Suggested Opportunity, pp. 574-576
A. F. Blakeslee
High Temperature Deaths Among Experimental Rats, p. 576
Hazel C. Cameron
Naturalists of the Frontier, p. 576
L. O. Howard


Special Correspondence
Barro Colorado Island Biological Station, p. 577
Vernon Kellogg


Scientific Apparatus and Laboratory Methods
Two Common Fly Species Easily Reared in the Laboratory, pp. 577-579
J. W. Wilson; Norman R. Stoll


Special Articles
The Synthesis of Pyrimidine-Nucleosides, pp. 579-580
Treat B. Johnson; Guido E. Hilbert
Crystalline Pepsin, p. 580
John H. Northrop
Concerning Retinal Pressure Images and Their Brownian-Like Movement, pp. 580-582
Otto F. Kampmeier


The American Association for the Advancement of Science
The Spring Meeting of the Executive Committee, pp. 582-584
Burton E. Livingston


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1795, May 24, 1929
Next Issue: New Series, Vol. 69, No. 1797, Jun. 7, 1929



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Science, New Series, Vol. 69, No. 1797, Jun. 7, 1929


Previous Issue: New Series, Vol. 69, No. 1796, May 31, 1929
Next Issue: New Series, Vol. 69, No. 1798, Jun. 14, 1929


Front Matter (4 pp.)
The Twenty-Fifth Anniversary of Initiation of Research in the Carnegie Institution of Washington, pp. 585-592
John C. Merriam; Edwin G. Conklin; John J. Carty

Earle Melvin Terry--1879-1929, p. 592
L. R. Ingersoll


Scientific Events
Public Health under the Federal Government, pp. 592-593
The Tennessee Academy of Science, p. 593
John T. McGill
The Seventh Colloid Symposium, pp. 593-594
The Earliest Motion Pictures, p. 594
The Inauguration of Research by the Carnegie Institution of Washington, pp. 594-595


Scientific Notes and News, pp. 595-599
University and Educational Notes, p. 599


Discussion
A Pierre Dinosaur, pp. 599-600
G. R. Wieland
Zygophyllum Fabago in Colorado, pp. 600-601
Charles F. Rogers
Proposed Amendments to the International Rules for Botanical Nomenclature, p. 601
C. L. Shear


Quotations
The Carnegie Institution of Washington, pp. 601-602


Scientific Books
----------------, pp. 602-603
Die Pflanzenreste des mitteldeutschen Kupferschiefers und ihre Einschaltung ins Sediment. Eine palökologische Studie
Joh. Weigelt
Review author[s]: Edward W. Berry
----------------, pp. 603-604
What is Life?
Augusta Gaskell; Charles C. Thomas
Review author[s]: H. F. Israel; L. P. Herrington


Special Articles
A Possible Method of Enhancing the Therapeutic Action of Antibacterial Serums, pp. 604-605
Frederick P. Gay; Ada R. Clark
The Composition of Peculiar Clinkers Found in Snags after Forest Fires, pp. 605-606
Duane T. Englis; W. N. Day
The Effect of X-Rays on Potato Tubers for ``Seed'', p. 606
Howard B. Sprague; Maurice Lenz


Science News, pp. x+xii+xiv
Back Matter (4 pp.)

Previous Issue: New Series, Vol. 69, No. 1796, May 31, 1929
Next Issue: New Series, Vol. 69, No. 1798, Jun. 14, 1929



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Science, New Series, Vol. 69, No. 1798, Jun. 14, 1929


Previous Issue: New Series, Vol. 69, No. 1797, Jun. 7, 1929
Next Issue: New Series, Vol. 69, No. 1799, Jun. 21, 1929


Front Matter (4 pp.)
Naval Research, pp. 607-609
C. S. McDowell

Some New Fundamentals in Plant Biology, Agriculture and the Food Problem, pp. 609-613
O. W. Willcox


Scientific Events
A Biological Study of Neritic Waters in the Gulf of Maine, pp. 613-614
Work of the Rockefeller Foundation, pp. 614-615
Gift to New York University Medical School, p. 615
The International Corn Borer Conference, pp. 615-616
The Texas Academy of Science, p. 616


Scientific Notes and News, pp. 616-620
University and Educational Notes, p. 620


Discussion
Glacial Geology and the Vermont Flood, pp. 621-622
Julius W. Eggleston
The Species of Paramecium and the Thyroid Question, pp. 622-623
Waldo Shumway
The Smelt in Lake Michigan, p. 623
Charles W. Creaser


Quotations
Humphry Davy, pp. 623-624


Scientific Books
----------------, pp. 624-626
The Nature of the Physical World
A. S. Eddington
Review author[s]: Leigh Page


Scientific Apparatus and Laboratory Methods
Practical Hints in the Laboratory Studies of Protozoa and Earthworm, p. 626
T. T. Chen


Special Articles
The Photoelectric Effect as Related to the Size and Surface Conditions of Carbon Particles, pp. 627-628
L. G. Morell; Wesley E. Thomas
The Effect upon Digitalis Purpurea of Radiation through Solarized Ultra-Violet-Transmitting Glass, pp. 628-629
Adelia McCrea
Chromosome Morphology in Zea Mays, p. 629
Barbara McClintock


Philadelphia Meeting of the American Association of Museums, p. 630
Laurence Vail Coleman

Science News, pp. x+xii+xiv
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 69, No. 1797, Jun. 7, 1929
Next Issue: New Series, Vol. 69, No. 1799, Jun. 21, 1929



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Science, New Series, Vol. 69, No. 1799, Jun. 21, 1929


Previous Issue: New Series, Vol. 69, No. 1798, Jun. 14, 1929
Next Issue: New Series, Vol. 69, No. 1800, Jun. 28, 1929


Front Matter (4 pp.)
The Application of Transmittancy Measurements to Biochemistry, pp. 631-636
Frank M. Schertz

Charles Depéret, pp. 636-637
Henry Fairfield Osborn

Franz Keibel, p. 637
G. L. S.

Carey V. Hodgson, pp. 637-638
William Bowie


Scientific Events
The Production of ``Talking'' Motion Pictures by the Department of Agriculture, p. 638
The Giannini Foundation of the University of California, pp. 638-639
The Settlement of the Undeveloped Areas of Canada, p. 639
The Cornell Center for Research in Biophysics, pp. 639-640
The Thirteenth Summer Meeting of the American Mathematical Association, pp. 640-641


Scientific Notes and News, pp. 641-644
University and Educational Notes, pp. 644-645


Discussion
Gift to down House of the Original Letters of Charles Darwin to Fritz Müller, p. 645
Henry Fairfield Osborn
A Case of Accidental Parasitism, pp. 645-646
George W. Hunter
Cephenomyia Sp. Killing Deer, pp. 646-647
C. R. Walker
Solar Eclipses, p. 647
Millicent Todd Bingham


Scientific Books
----------------, p. 647
Colour and Colour Theories
Christine Ladd-Franklin
Review author[s]: Howard C. Warren
----------------, pp. 647-648
Meteorology
David Brunt
Review author[s]: W. J. Humphreys


Scientific Apparatus and Laboratory Methods
Apparatus for the Detection of Substratum Communication Among Termites, pp. 648-649
Alfred E. Emerson; Robert C. Simpson
An Accurate Drop Recorder, pp. 649-650
O. S. Gibbs


Special Articles
A Study of Iodine in South Carolina, pp. 650-651
J. H. Mitchell
A New Disease of Douglas Fir, pp. 651-652
Nathaniel O. Howard


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1798, Jun. 14, 1929
Next Issue: New Series, Vol. 69, No. 1800, Jun. 28, 1929



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Science, New Series, Vol. 69, No. 1800, Jun. 28, 1929


Previous Issue: New Series, Vol. 69, No. 1799, Jun. 21, 1929
Next Issue: New Series, Vol. 70, No. 1801, Jul. 5, 1929


Front Matter (3 pp.)
Hideyo Noguchi, pp. 653-660
Simon Flexner

The Importance of Natural Areas to Forestry Officially Recognized, pp. 660-663
L. G. Romell


Scientific Events
Fish Culture in the National Parks, p. 663
Aerial Photography, pp. 663-664
Advisory Committee for the Century of Progress Exposition, p. 664
The Sedgwick Medal Award, pp. 664-665
British Scientific Honors, pp. 665-666


Scientific Notes and News, pp. 666-669
University and Educational Notes, p. 669


Discussion
The Northern Lights of June 7, 1928, pp. 669-670
H. A. Allard
Automobiles and Animal Mortality, pp. 670-671
Dayton Stoner
Interpreting the Grand Canyon, pp. 671-672
David White


Scientific Apparatus and Laboratory Methods
A Standard Microcinematographic Apparatus, pp. 672-674
Heinz Rosenberger


Special Articles
Sinanthropus Pekinensis: The Recovery of Further Fossil Remains of this Early Hominid from the Chou Kou Tien Deposit, pp. 674-676
Davidson Black
An Ultra-Violet Lead Oxide Band System, pp. 676-677
Sidney Bloomenthal
The Life-Cycle of Haplobothrium Globuliforme Cooper 1914, pp. 677-678
Hiram E. Essex


Thirty-Ninth Annual Meeting of the Ohio Academy of Science, p. 678
W. H. Alexander

Science News, pp. x+xii

Previous Issue: New Series, Vol. 69, No. 1799, Jun. 21, 1929
Next Issue: New Series, Vol. 70, No. 1801, Jul. 5, 1929



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Science, New Series, Vol. 70, No. 1801, Jul. 5, 1929


Previous Issue: New Series, Vol. 69, No. 1800, Jun. 28, 1929
Next Issue: New Series, Vol. 70, No. 1802, Jul. 12, 1929


Volume Information (8 pp.)
Front Matter (4 pp.)
Immunological Prophecy from Ancient Hieroglyphics, pp. 1-7
W. H. Manwaring


Obituary
Recent Deaths, p. 8


Scientific Events
The Centenary of James Smithson, p. 8
Research in Coal Mining and Metallurgy at the Carnegie Institute of Technology, pp. 8-9
The Murry and Leonie Guggenheim Foundation, p. 9
The American Institute of Electrical Engineers, pp. 9-10


Scientific Notes and News, pp. 10-14
University and Educational Notes, p. 14


Discussion
A Mechanical Parallel to the Conditioned Reflex, pp. 14-15
Clark L. Hull; H. D. Baernstein
Changes in the Rate of Respiration of the Fruits of the Cultivated Blueberry during Ripening, p. 15
H. F. Bergman
An International List of Genera of Vascular Plants, pp. 15-16
Alfred Gundersen
Gregor Mendel, p. 16
Chas. B. Davenport


Scientific Apparatus and Laboratory Methods
Another Synthetic Resin Useful in Microscopy, pp. 16-17
G. Dallas Hanna


Special Articles
On the Relation of Potassium to Iron in the Combustion of Cigar-Leaf Tobacco, pp. 17-18
D. E. Haley; Otto Olson
Carbon Disulfide Emulsion for the Control of a Nematode, p. 18
P. J. Chapman; M. M. Parker


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 69, No. 1800, Jun. 28, 1929
Next Issue: New Series, Vol. 70, No. 1802, Jul. 12, 1929



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Science, New Series, Vol. 70, No. 1802, Jul. 12, 1929


Previous Issue: New Series, Vol. 70, No. 1801, Jul. 5, 1929
Next Issue: New Series, Vol. 70, No. 1803, Jul. 19, 1929


Front Matter (4 pp.)


The Economic Status of Scientific Men and Women
Budget Needs of College Teachers, pp. 19-25
Benjamin R. Andrews
Salaries and Supplementary Earnings of College Teachers, pp. 26-29
Frank P. Bachman


Obituary
Professor John A. Mandel, pp. 29-30
W. C. MacTavish
Recent Deaths, p. 30


Scientific Events
The Opening of down House, p. 30
The Joint Meeting of the French and British Associations at Havre, pp. 30-31
The Royal Geographical Society, pp. 31-32
The Retirement of Dean Veranus A. Moore of Cornell University, p. 32
Grants-In-Aid Fund of the National Research Council, p. 32


Scientific Notes and News, pp. 32-36
University and Educational Notes, pp. 36-37


Discussion
Biological Control of the Prickly Pear in Madagascar, p. 37
Charles F. Swingle
Horses, Dogs and Cats, pp. 37-38
Austin H. Clark
Atmospheric Electricity, pp. 38-39
Victor A. Endersby; Duncan G. Foster
Educational Science!, p. 39
Samuel W. Fernberger


Special Correspondence
The Recent Bone-Cavern Find at Bishop's Cap, New Mexico, pp. 39-41
Wm. Alanson Bryan


Scientific Books
----------------, pp. 41-43
Statistical Mechanics
R. H. Fowler
Review author[s]: J. H. Van Vleck


Scientific Apparatus and Laboratory Methods
A Method for Comparing the Value of Ammonia Nitrogen and Nitrate Nitrogen, pp. 43-44
William G. Friedemann
A New Type of Respiration Chamber, p. 44
T. J. Maney; P. L. Harding; H. H. Plagge


Special Articles
Relation of External Environment to Course of a B. Enteritidis Infection in Mice, p. 45
I. J. Kligler; L. Olitzki
Botanical and Geological Evidence for an Ancient Lake, pp. 45-46
H. R. Aldrich; N. C. Fassett


Science News, pp. x+xii+xiv

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Next Issue: New Series, Vol. 70, No. 1803, Jul. 19, 1929



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Science, New Series, Vol. 70, No. 1803, Jul. 19, 1929


Previous Issue: New Series, Vol. 70, No. 1802, Jul. 12, 1929
Next Issue: New Series, Vol. 70, No. 1804, Jul. 26, 1929


Front Matter (4 pp.)


The Economic Status of Scientific Men and Women. II
Salary Scales of Trained Men and Women, pp. 47-56
Rodney H. True
Discussion of Papers on the Economic Status of Scientific Workers, p. 57
Harold F. Clark


Obituary
Alexander Ziwet, pp. 58-60
Arthur Lyon Cross


Scientific Events
Industrial Standardization, p. 60
Retiring Allowances of Harvard University, pp. 60-61
The Neurological Institute of New York City, p. 61
The Medical Center in Richmond, Virginia, pp. 61-62
W. T. Sanger
The First International Congress on Mental Hygiene, p. 62
The Mayo Foundation Chapter of Sigma Xi, p. 62


Scientific Notes and News, pp. 62-65
University and Educational Notes, p. 66


Discussion
Babylonian Mathematics, pp. 66-67
Raymond Clare Archibald
Biological Publications in America, pp. 67-68
Willard N. Clute
Intestinal Protozoa and Cecal Material in Rats, p. 68
David Causey
Forbesichthys for Forbesella, p. 68
David Starr Jordan


Special Correspondence
Geological Map of New Mexico, pp. 68-70
W. M. Davis


Scientific Books
----------------, pp. 70-73
The Cowbirds, a Study in the Biology of Social Parasitism
Herbert Friedmann
Review author[s]: W. M. Wheeler


Scientific Apparatus and Laboratory Methods
A Vibrato Tonometer, p. 73
Joseph H. Tiffin
Laboratory Uses of Ultra-Violet Transmitting Glasses, pp. 73-74
Donald C. Stockbarger


Special Articles
The Effect of X-Rays on Bacteria, pp. 74-75
George L. Clark; C. S. Boruff
Multiple Glaciation in the Sierra Nevada, pp. 75-76
F. E. Matthes


Science News, pp. x+xii+xiv

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Science, New Series, Vol. 70, No. 1804, Jul. 26, 1929


Previous Issue: New Series, Vol. 70, No. 1803, Jul. 19, 1929
Next Issue: New Series, Vol. 70, No. 1805, Aug. 2, 1929


Front Matter (4 pp.)
Some Problems of Cosmical Physics, Solved and Unsolved, pp. 77-84
Lord Rayleigh

The Decline in the Average Length of Life, pp. 85-87
C. H. Forsyth


Obituary
Sidney Savory Buckman, 1860-1929, pp. 87-88
C. H. Crickmay
Recent Deaths, p. 88


Scientific Events
Progress of the World Farm Census, p. 89
Report of the House Committee on Flood Control, pp. 89-90
The New Laboratory Building at Columbia University, p. 90
Summer Work of Harvard Geologists, pp. 90-91
Committees of the American Engineering Council, p. 91


Scientific Notes and News, pp. 91-95
University and Educational Notes, pp. 95-96


Discussion
Priority in Stratigraphic Nomenclature, pp. 96-97
Herbert P. Woodward
Did John Napier Invent Logarithms?, pp. 97-98
G. A. Miller
Dinosaur Tendons, p. 98
Roy L. Moodie
Lactation Vs. Improved Growth in Stock Albino Rats, pp. 98-99
Arthur H. Smith; William E. Anderson


Special Correspondence
Stanford University Scientific Expedition, pp. 99-100
Lionel William Wiedey; William W. Valentine


Scientific Books
----------------, pp. 100-101
Geologie von Peru
G. Steinmann
Review author[s]: Edward W. Berry


Special Articles
On the Incidence of Infection with Intestinal Protozoa, p. 102
David Causey
Chemical Treatment to Shorten the Rest Period of Sugar Maple Trees, p. 102
C. G. Deuber; P. R. Bowen


Science News, pp. x+xii+xiv

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Science, New Series, Vol. 70, No. 1805, Aug. 2, 1929


Previous Issue: New Series, Vol. 70, No. 1804, Jul. 26, 1929
Next Issue: New Series, Vol. 70, No. 1806, Aug. 9, 1929


Front Matter (4 pp.)


The British Association for the Advancement of Science
The International Relationship of Minerals, pp. 103-110
Thomas Holland


Scientific Events
The Pan-American Institute of Geography and History, p. 111
The Bashford Dean Memorial Exhibit of Fossil Fishes, p. 111
Field Parties of the Oklahoma Geological Survey, pp. 111-112
Conference of the General Electric Company, p. 112
The Woods Hole Station of the Bureau of Fisheries, pp. 112-113


Scientific Notes and News, pp. 113-117
University and Educational Notes, pp. 117-118


Discussion
Atmospheric Electricity during Sand Storms, pp. 118-119
Ross Aiken Gortner
Wreck of the Archeological Department of the Academy of Natural Sciences of Philadelphia, pp. 119-121
H. Newell Wardle
The Dictionary of American Biography, pp. 121-122
William H. Powers
Professor Conn and the Brooklyn Institute, p. 122
Louis C. Ager


Special Correspondence
Testimonial Dinner to Dr. Merrill, pp. 122-123
James H. Benn


Reports
Foreign Relations of the National Academy of Sciences, pp. 124-125
R. A. Millikan


Scientific Apparatus and Laboratory Methods
Apparatus for the Determination of Carbon Dioxide in the Respiration of Apples, pp. 125-126
P. L. Harding; T. J. Maney; H. H. Plagge
Apple Rust on Host Tissue in Culture Dishes, p. 126
N. J. Giddings; L. H. Leonian


Special Articles
Normal Mushrooms from Artificial Manure, pp. 126-128
Edmund B. Lambert


Seventh Annual Meeting of the International Association for Dental Research, p. 128
William J. Gies

Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1804, Jul. 26, 1929
Next Issue: New Series, Vol. 70, No. 1806, Aug. 9, 1929



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Science, New Series, Vol. 70, No. 1806, Aug. 9, 1929


Previous Issue: New Series, Vol. 70, No. 1805, Aug. 2, 1929
Next Issue: New Series, Vol. 70, No. 1807, Aug. 16, 1929


Front Matter (4 pp.)


The American Association for the Advancement of Science
The Second Berkeley Meeting of the Pacific Division, pp. 129-133
Arthur G. Vestal


Obituary
Paul Adin Lewis, pp. 133-134
Simon Flexner
Recent Deaths, p. 135


Scientific Events
The New Building of the London School of Hygiene and Tropical Medicine, p. 135
The Oxford Expedition to the Guiana Rain-Forest, p. 136
Survey of Tides and Currents by the U. S. Coast and Geodetic Survey, pp. 136-137
The Adler Planetarium and Astronomical Museum, p. 137


Scientific Notes and News, pp. 138-139
University and Educational Notes, pp. 139-140


Discussion
Columnar Structure in Limestone, pp. 140-141
Sharat K. Roy
Forests and Precipitation, pp. 141-142
Barrington Moore
The International Geological Congress in Pretoria and a Geological Map of the World, p. 142
Carlo Von Kügelgen
The Phylum in Zoology and Paleontology, pp. 142-143
W. D. Matthew
Courses in Astronomy in South Africa, p. 143
Harold L. Alden


Quotations
Science in Africa, pp. 143-144


Scientific Books
----------------, pp. 144-145
Johannes Kepler, Neue Astronomie
Max Caspar
Review author[s]: Florian Cajori
----------------, p. 145
The Pageant of the Stars, a Handbook of Astronomy
Willem J. Luyten
Review author[s]: Jan Schilt


Reports
Eradication of the Mediterranean Fruit Fly, pp. 146-147


Scientific Apparatus and Laboratory Methods
A New Type of Lysimeter at the New Jersey Agricultural Experiment Station, pp. 147-148
J. S. Joffe
The Gargoyle as a Scientific Instrument, pp. 148-149
Frank C. Gates


Special Articles
The Relationship of Chlorophyll to the Porphyrins, p. 149
J. B. Conant; J. F. Hyde
The Type of Genus Coccus (Homoptera, Coccidae), p. 150
T. D. A. Cockerell


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1805, Aug. 2, 1929
Next Issue: New Series, Vol. 70, No. 1807, Aug. 16, 1929



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Science, New Series, Vol. 70, No. 1807, Aug. 16, 1929


Previous Issue: New Series, Vol. 70, No. 1806, Aug. 9, 1929
Next Issue: New Series, Vol. 70, No. 1808, Aug. 23, 1929


Front Matter (4 pp.)
The Chronaxic Switching in the Nervous System, pp. 151-154
Louis Lapicque


The American Association for the Advancement of Science
The Second Berkeley Meeting of the Pacific Division. II, pp. 154-159
Arthur G. Vestal


Scientific Events
The Australian Institute of Anatomy, pp. 159-160
Malaria in India, p. 160
Soil Surveys Approved by the Pacific Science Congress, pp. 160-161
The Philippine Research Institute, p. 161
The Bermuda Oceanographic Expedition, pp. 161-162


Scientific Notes and News, pp. 162-166
University and Educational Notes, p. 166


Discussion
Need for an International Repository for Original Research Data, pp. 167-168
R. W. Thatcher
Preservation of Natural Areas, p. 168
Willard G. Van Name
Insect Nutrition, p. 168
E. F. Phillips
New Fossils from Maine, pp. 168-169
Edward S. C. Smith


Special Correspondence
The Field Trip of the Ohio-Kentucky Academies of Science and the Seventy-Fifth Anniversary of the Kentucky Geological Survey, p. 169
Chas. H. Behre


Scientific Books
----------------, pp. 170-172
The Rôle of Research in the Development of Forestry in North America
I. W. Bailey; H. A. Spoehr
Review author[s]: Henry S. Graves


Scientific Apparatus and Laboratory Methods
New Forms of Dry and Wet Bulb Thermometers, pp. 172-173
Alexander McAdie


Special Articles
Is Ossification Influenced Solely by Ultra-Violet Light?, pp. 173-174
R. Adams Dutcher; H. E. Honeywell
A Comparison of the Copper Content of Oklahoma Wheat with Those of Other States, p. 174
James E. Webster; Frank Jansma


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1806, Aug. 9, 1929
Next Issue: New Series, Vol. 70, No. 1808, Aug. 23, 1929



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Science, New Series, Vol. 70, No. 1808, Aug. 23, 1929


Previous Issue: New Series, Vol. 70, No. 1807, Aug. 16, 1929
Next Issue: New Series, Vol. 70, No. 1809, Aug. 30, 1929


Front Matter (4 pp.)
The Rôle of Physics in Modern Industry, pp. 175-183
L. O. Grondahl


Obituary
Captain Charles Frederick Silvester, pp. 183-185
Charles F. W. McClure
Recent Deaths, p. 185


Scientific Events
Bird Sanctuaries in London, p. 185
The Investigation of Air Pollution at the Mellon Institute, p. 186
Lawrence W. Bass
The Des Moines Meeting of the American Society of Zoologists and the Section of Zoological Sciences of the American Association, pp. 186-187
Geo. T. Hargitt
The Nineteenth International Congress of Physiology, p. 187


Scientific Notes and News, pp. 188-190
University and Educational Notes, p. 191


Discussion
A Note on the Association of Diseases, pp. 191-192
Raymond Pearl
Parthenogenesis and Polyembryony in Alnus Rugosa (Duroi) Spreng, pp. 192-193
Robert H. Woodworth
A Bombarding Dicaelus Beetle, p. 193
P. W. Fattig


Quotations
The Seventieth Birthday Anniversary of Theobald Smith, pp. 193-194


Scientific Books
----------------, pp. 194-195
Incomes and Living Costs of a University Faculty
Yandell Henderson; Maurice R. Davie
Review author[s]: Joseph Jastrow


Scientific Apparatus and Laboratory Methods
A Safety Razor Blade Which Cuts as Well as the Best Microtome Knives, p. 196
Alfred F. Huettner
Another Petrographic Method, p. 196
R. C. Emmons


Special Articles
A Method of Determining the Axial Ratio of a Crystal from X-Ray Diffraction Data: The Axial Ratio and Lattice Constants of Zinc Oxide, pp. 196-198
M. Luther Fuller


The North Carolina Academy of Science, p. 198
H. R. Totten

Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1807, Aug. 16, 1929
Next Issue: New Series, Vol. 70, No. 1809, Aug. 30, 1929



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Science, New Series, Vol. 70, No. 1809, Aug. 30, 1929


Previous Issue: New Series, Vol. 70, No. 1808, Aug. 23, 1929
Next Issue: New Series, Vol. 70, No. 1810, Sep. 6, 1929


Front Matter (4 pp.)


The Thirteenth International Physiological Congress
Address of Welcome of the President of the Thirteenth International Physiological Congress, pp. 199-200
William H. Howell
The Progress of Physiology, pp. 200-204
August Krogh
Reminiscences of the Early Days of the Physiological Congresses, pp. 205-207
Leon Frederico


Obituary
Recent Deaths, pp. 207-208


Scientific Events
The Botanic Garden of the University of Cambridge, p. 208
Demonstrations of Biological Work at Woods Hole, pp. 208-210
International Lighthouse Conference, pp. 210-211
The Mathematics of Engineering, p. 211
R. G. D. Richardson


Scientific Notes and News, pp. 211-214
University and Educational Notes, p. 214


Discussion
Shaler on the Fossil Brachiopods of the Ohio Valley, pp. 214-216
Robert Tracy Jackson
Ions and Electrical Currents in the Upper Atmosphere, p. 216
E. O. Hulburt
Muybridge Animal Pictures, pp. 216-217
Walter R. Miles
A Unified System of Presenting Bibliographies, p. 217
J. L. St. John
A New Blue Crayfish, p. 217
Curtis L. Newcombe


Quotations
Electrical Research, p. 218


Scientific Books
----------------, pp. 218-219
Plant Ecology
John E. Weaver; Frederic E. Clements
Review author[s]: Francis Ramaley
----------------, p. 219
Grundlinien der experimentellen Planktonforschung
Einar Naumann
Review author[s]: C. Juday


Scientific Apparatus and Laboratory Methods
A Simple Method for Finding any Particular Object in a Microscopic Slide Preparation, pp. 219-220
Edward C. Rosenow


Special Articles
Studies of Mean Sealevel, pp. 220-222
Douglas W. Johnson
Segregations Observed in Breeding the Monilia Bread Molds, p. 222
B. O. Dodge


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1808, Aug. 23, 1929
Next Issue: New Series, Vol. 70, No. 1810, Sep. 6, 1929



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Science, New Series, Vol. 70, No. 1810, Sep. 6, 1929


Previous Issue: New Series, Vol. 70, No. 1809, Aug. 30, 1929
Next Issue: New Series, Vol. 70, No. 1811, Sep. 13, 1929


Front Matter (4 pp.)
Views of Higher Seed Plant Descent Since 1879, pp. 223-228
G. R. Wieland

Ceremony Attending the Opening of down House, the Home of Charles Darwin, pp. 228-231
Joseph Leidy


Obituary
Recent Deaths, p. 231


Scientific Events
Scientific Research in India, pp. 231-232
The Australian Antarctic Research Expedition, p. 232
The University of Kentucky Botanic Gardens, p. 233
Honorary Degrees at Yale University, pp. 233-234


Scientific Notes and News, pp. 234-238
University and Educational Notes, p. 238


Discussion
Quality Versus Quantity in University Faculties, pp. 238-240
Yandell Henderson
Roundstone, a New Geologic Term, p. 240
Frederik A. Fernald
The Use of Paradichlorobenzene in the Conservation of Herbaria, p. 240
R. Ciferri


Scientific Apparatus and Laboratory Methods
A Small Animal Cage with Sanitary Features, p. 241
Donald A. Laird


Special Articles
Solubility of Uric Acid in the Blood, pp. 241-242
Owen S. Gibbs


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1809, Aug. 30, 1929
Next Issue: New Series, Vol. 70, No. 1811, Sep. 13, 1929



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Science, New Series, Vol. 70, No. 1811, Sep. 13, 1929


Previous Issue: New Series, Vol. 70, No. 1810, Sep. 6, 1929
Next Issue: New Series, Vol. 70, No. 1812, Sep. 20, 1929


Front Matter (4 pp.)
The Second Celebration of the Twenty-Fifth Anniversary of Research in the Carnegie Institution of Washington, pp. 243-250


Obituary
Recent Deaths, pp. 250-251
Memorials, p. 251


Scientific Events
The King Prizes of the Peking Society of Natural History, pp. 251-252
The Beit Memorial Fellowships, p. 252
Western Forest Fires, pp. 252-253
The New Building of the U. S. Department of Agriculture, p. 253
Official American Delegates to the International Engineering Congress in Tokio, pp. 253-254


Scientific Notes and News, pp. 254-257
University and Educational Notes, pp. 257-258


Discussion
The Origin of Chlorophyll and Its Relationship to the Blood Pigments, pp. 258-259
Frank M. Schertz
Significance of Post-Illinoian, Pre-Iowan Loess, pp. 259-260
George F. Kay
Peculiarly Shaped Hailstones, p. 260
Chas. T. Knipp
Mortality Statistics and the Length of Life, pp. 260-261
J. T. Ryan


Quotations
Sir Norman Lockyer and the Editorship of ``Nature'', pp. 261-262


Reports
The Census of 1930, pp. 262-263


Scientific Apparatus and Laboratory Methods
Construction of Micro-Thermocouples, pp. 263-266
D. M. Whitaker


Special Articles
The Earthworm Fauna of the United States, pp. 266-267
G. E. Gates
The Relationship of Black Chaff Disease of Wheat to Certain Physical and Pathological Characters, p. 268
L. R. Waldron


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1810, Sep. 6, 1929
Next Issue: New Series, Vol. 70, No. 1812, Sep. 20, 1929



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Science, New Series, Vol. 70, No. 1812, Sep. 20, 1929


Previous Issue: New Series, Vol. 70, No. 1811, Sep. 13, 1929
Next Issue: New Series, Vol. 70, No. 1813, Sep. 27, 1929


Front Matter (4 pp.)


The British Association for the Advancement of Science
Africa and Science, pp. 269-274
Jan H. Hofmeyr


Obituary
George Perkins Merrill, pp. 274-275
Marcus Benjamin
Recent Deaths, p. 275


Scientific Events
Native Races in New Guinea, p. 276
Discontinuance of the Chilean Observatory of the University of California, p. 276
The National Forests of Alaska, pp. 276-277
The Graduate School of the U. S. Department of Agriculture, pp. 277-278
Formal Opening of the Chemical Laboratory of Princeton University, pp. 278-279


Scientific Notes and News, pp. 279-281
University and Educational Notes, p. 281


Discussion
Large Numbers Used before the Christian Era, p. 282
G. A. Miller
Soybean Cheese, pp. 282-283
Frederick V. Coville
Manganese Toxicity in Tobacco, pp. 283-284
H. G. M. Jacobson; T. R. Swanback
Evidences of Aquatic Life from the Glenwood Stage of Lake Chicago, p. 284
John R. Ball; William E. Powers
The Capture of Young Whitefish in the Bay of Quinte, p. 284
J. L. Hart


Scientific Books
----------------, pp. 284-285
Comparative Neurology, a Manual and Text for the Study of the Nervous System of Vertebrates
James W. Papez
Review author[s]: O. Larsell


Reports
The Committee on Awards for the Scientific Exhibit of the American Medical Association, pp. 285-286


Scientific Apparatus and Laboratory Methods
A Method for Obtaining a Breeding Stock of Rats Free from Intestinal Protozoa, pp. 286-287
Herbert L. Ratcliffe


Special Articles
Accumulation of Gas in Closed Collodion Sacs Immersed in Flowing Tap Water, pp. 287-289
Stacy R. Guild
Does Regeneration Follow Complete Ovariotomy in the Albino Rat?, pp. 289-290
Florence M. Heys


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1811, Sep. 13, 1929
Next Issue: New Series, Vol. 70, No. 1813, Sep. 27, 1929



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Science, New Series, Vol. 70, No. 1813, Sep. 27, 1929


Previous Issue: New Series, Vol. 70, No. 1812, Sep. 20, 1929
Next Issue: New Series, Vol. 70, No. 1814, Oct. 4, 1929


Front Matter (4 pp.)
Interruption of Central Asiatic Exploration by the American Museum of Natural History, pp. 291-294
Henry Fairfield Osborn


The British Association for the Advancement of Science
Africa and Science. II, pp. 294-299
Jan H. Hofmeyr


Obituary
John Merle Coulter, pp. 299-301
Otis W. Caldwell; Henry C. Cowles; William Crocker; L. R. Jones; R. A. Harper
Recent Deaths, p. 301


Scientific Events
Recent Additions to the South Kensington Museum, pp. 301-302
The New York Skin and Cancer Hospital, p. 302
The Popularization of Chemistry, pp. 302-303
Public Education at Brooklyn Botanic Garden, p. 303
Visit of Mme. Curie to the United States, p. 304


Scientific Notes and News, pp. 304-307
University and Educational Notes, p. 307


Discussion
A New Species of Mono-Mucor, Mucor Sufu, on Chinese Soybean Cheese, pp. 307-308
Nganshou Wai
Concerning Heterothallism in Puccinia Graminis, pp. 308-309
Ruth F. Allen
A Use of Journals by Research Men, p. 309
J. L. St. John
Functions of Review Journals, pp. 309-310
Carl G. Hartman


Scientific Apparatus and Laboratory Methods
New Technique for Collecting Intestinal Roundworms, pp. 310-311
James E. Ackert; L. O. Nolf
Paramecium Bursaria as a Laboratory Demonstration of Cyclosis, p. 311
R. F. Nigrelli; R. P. Hall


Special Articles
Michigan Papyrus 620; the Introduction of Algebraic Equations in Greece, pp. 311-314
Louis C. Karpinski; Frank E. Robbins
The Dry Matter in Different Layers of Egg Albumin, p. 314
Alexis L. Romanoff


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1812, Sep. 20, 1929
Next Issue: New Series, Vol. 70, No. 1814, Oct. 4, 1929



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Science, New Series, Vol. 70, No. 1814, Oct. 4, 1929


Previous Issue: New Series, Vol. 70, No. 1813, Sep. 27, 1929
Next Issue: New Series, Vol. 70, No. 1815, Oct. 11, 1929


Front Matter (4 pp.)
Paleontological Monographs of the National Geological Surveys, pp. 315-317
Henry Fairfield Osborn


Obituary
Arthur S. Loevenhart, pp. 317-321
H. S. Gasser
Recent Deaths, p. 321


Scientific Events
The Roosevelt Memorial of the American Museum of Natural History, pp. 321-322
The Yale Institute of Human Relations, p. 322
The Pan-American Institute of Geography, p. 323
The Iron Alloys Committee of the Engineering Foundation, p. 323
Princeton Doctorates of Science, pp. 323-324


Scientific Notes and News, pp. 324-327
University and Educational Notes, p. 328


Discussion
Some New Laws for the Solar System, pp. 328-329
William Marias Malisoff
A Study of the Fire Blight Pathogen, Bacillus Amylovorus, within Living Tissues, pp. 329-330
H. R. Rosen
Proposed Amendments to the International Rules of Nomenclature, p. 330
J. C. Arthur
Odd Stories about Scientific Names, pp. 330-331
L. O. Howard


Scientific Apparatus and Laboratory Methods
New Methods in the Study of Fossil Shark Teeth, pp. 331-332
Don L. Carroll


Special Articles
The Internal Temperature of the Earth's Crust, pp. 332-334
Frank M. Gentry
A Blue Mutation in the Rat (Mus Norvegicus), p. 334
Elmer Roberts


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1813, Sep. 27, 1929
Next Issue: New Series, Vol. 70, No. 1815, Oct. 11, 1929



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Science, New Series, Vol. 70, No. 1815, Oct. 11, 1929


Previous Issue: New Series, Vol. 70, No. 1814, Oct. 4, 1929
Next Issue: New Series, Vol. 70, No. 1816, Oct. 18, 1929


Front Matter (4 pp.)
Psychology in America, pp. 335-347
J. McKeen Cattell


Obituary
George Rusby Kaye: 1866-1929, p. 347
David Eugene Smith
Naomasa Yamasaki, pp. 347-348
T. Wayland Vaughan
Recent Deaths, p. 348


Scientific Events
The Imperial Mycological Conference, pp. 348-349
The Brackenridge Clemens Memorial, pp. 349-350
The Parc National Albert in the Belgian Congo, p. 350
The Fiftieth Anniversary of the American Society of Mechanical Engineers, pp. 350-351
The Celebration of ``Light's Golden Jubilee'' by New York State, p. 351


Scientific Notes and News, pp. 351-354
University and Educational Notes, p. 354


Discussion
The Discovery of Insect Transmission of Pathogenic Micro-Organisms, p. 355
H. R. Rosen
The Rate of Absorption of Epinephrine from the Subcutaneous Tissue, pp. 355-356
C. F. Cori
The Chemical Nature of Enzymes, pp. 356-357
Emerson R. Miller
The Secretion of Adrenalin, p. 357
A. F. Woods
Simon's ``Les Arachnides de France'', p. 357
C. R. Crosby
Hermaphroditism in Dendraster, p. 357
Joseph Needham; A. R. Moore


Scientific Apparatus and Laboratory Methods
Decerebration of the Domestic Fowl, pp. 357-358
D. W. Ashcraft
Marking Geological Specimens, p. 358
Earl T. Apfel


Special Articles
On the Nature of Gene Action, pp. 358-360
John W. Gowen
The Function of the Fertilization Membrane in the Development of the Larva of the Sea Urchin, p. 360
A. R. Moore


Science News, pp. x+xii+xiv
Back Matter (4 pp.)

Previous Issue: New Series, Vol. 70, No. 1814, Oct. 4, 1929
Next Issue: New Series, Vol. 70, No. 1816, Oct. 18, 1929



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Science, New Series, Vol. 70, No. 1816, Oct. 18, 1929


Previous Issue: New Series, Vol. 70, No. 1815, Oct. 11, 1929
Next Issue: New Series, Vol. 70, No. 1817, Oct. 25, 1929


Front Matter (4 pp.)
The Fourth Pacific Science Congress, pp. 361-364
T. Wayland Vaughan

The Ninth International Congress of Psychology, pp. 364-368
Herbert S. Langfeld

Preaching the Gospel of Science, pp. 368-371
Ralph C. Benedict


Scientific Events
Report of the British Commission of Forestry, p. 371
The International Technical Consulting Committee on Radio Communication, p. 372
Lake Erie Cooperative Survey, p. 372
The Forests of Liberia, pp. 372-373
The Profession of Engineering, pp. 373-374
Enrolment in the Medical Schools, p. 374


Scientific Notes and News, pp. 374-377
University and Educational Notes, p. 377


Discussion
The Fresh-Water Fauna of New Caledonia, pp. 378-379
T. D. A. Cockerell
Atmospheric Electricity during Sandstorms, pp. 379-380
J. M. Benade
The Physiology of the Singing Voice, p. 380
E. M. Josephson
A Popular Fallacy about Hardness, p. 380
A. S. Furcron
The Preparation of Charts for Reproduction, p. 380
Gordon L. Walls
Organic Syntheses, p. 380
Henry Gilman


Scientific Books
----------------, p. 381
Organographie der Pflanzen Insbesondere der Archegoniaten und Samenpflanzen
K. Goebel
Review author[s]: Duncan S. Johnson


Special Articles
Phosphorus Compounds of Muscle and Liver, pp. 381-382
Cyrus H. Fiske; Y. Subbarow
Balanced Fertilizers and Liebig's Law of the Minimum, pp. 382-384
Walter Thomas
Experimental Infection of Rats with the Balantidium from the Pig, p. 384
E. Schumaker


Science News, pp. x+xii+xiv
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 70, No. 1815, Oct. 11, 1929
Next Issue: New Series, Vol. 70, No. 1817, Oct. 25, 1929



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Science, New Series, Vol. 70, No. 1817, Oct. 25, 1929


Previous Issue: New Series, Vol. 70, No. 1816, Oct. 18, 1929
Next Issue: New Series, Vol. 70, No. 1818, Nov. 1, 1929


Front Matter (4 pp.)
Modern Concepts in Physics and Their Relation to Chemistry, pp. 385-396
Irving Langmuir


The American Association for the Advancement of Science
The Michael P. Rich Bequest for the Advancement of Science, pp. 396-397
Burton E. Livingston
Applications for Grants for 1930, pp. 397-398
The Section of Geology and Geography at Des Moines, p. 398
Kirtley F. Mather
Psychology, p. 398


Scientific Events
The Observatory of the University of London, pp. 398-399
The Medical Center in Boston, pp. 399-400
Medical Fellowships of the National Research Council, p. 400
Address to President Campbell by the Academic Senate of the University of California, p. 400


Scientific Notes and News, pp. 401-404
University and Educational Notes, p. 404


Discussion
Lunar Eclipses in General and in the Philippine Islands, pp. 404-406
Willard J. Fisher
A Gene for Supernumerary Mitoses during Spore Development in Zea Mays, pp. 406-407
George W. Beadle
Appeal for Samples of Tree Seeds, p. 407
Henry I. Baldwin
Newspaper Science, p. 407
Mel T. Cook


Scientific Apparatus and Laboratory Methods
Blocking-Out Undesirable Backgrounds in Photographs, p. 408
Albert Mann
Mounting Serial Sections, p. 408
Justus F. Mueller


Special Articles
The Laws of Distribution of Particles in Suspension, p. 409
P. G. Nutting
The Occurrence of Viable Cotton Root-Rot Sclerotia in Nature, pp. 409-410
D. C. Neal


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1816, Oct. 18, 1929
Next Issue: New Series, Vol. 70, No. 1818, Nov. 1, 1929



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Science, New Series, Vol. 70, No. 1818, Nov. 1, 1929


Previous Issue: New Series, Vol. 70, No. 1817, Oct. 25, 1929
Next Issue: New Series, Vol. 70, No. 1819, Nov. 8, 1929


Front Matter (4 pp.)
Mr. Hoover's Tribute to Mr. Edison, pp. 411-413
Dr. William Beaumont, an Appreciation, pp. 413-416
Walter R. Steiner

Ten Years of Statistical Studies of Marine Phytoplankton at the Scripps Institution of Oceanography, pp. 416-419
Winfred Emory Allen


The American Association for the Advancement of Science
The New Volume of Summarized Proceedings, p. 419
Burton E. Livingston
Hotels for the Des Moines Meeting, pp. 419-420
Burton E. Livingston


Scientific Events
International Map of the Roman Empire, p. 421
Aerological Results of the Greenland Expeditions of the University of Michigan, pp. 421-422
William Herbert Hobbs
Chemical Education at the Johns Hopkins University, p. 422
Forestry Education, pp. 422-423


Scientific Notes and News, pp. 423-426
University and Educational Notes, p. 426


Discussion
Is There an Age Dead-Line in the Scientific and Engineering Professions?, pp. 426-428
William A. Hamor; Lawrence W. Bass
Description of an Alligator Nest, p. 428
Arthur Svihla
A Starfish Attempts to Ingest a Minnow, pp. 428-429
F. E. Chidester
People Attacked by an Owl, p. 429
Albert M. Reese


Scientific Books
----------------, p. 429
The Autonomic Nervous System
Albert Kuntz
Review author[s]: Wayne J. Atwell


Scientific Apparatus and Laboratory Methods
An Ideal Mounting Medium for Mycologists, p. 430
David H. Linder
Note on Preparation of Collodion Bags, p. 430
Charles S. Shoup


Special Articles
Adaptation of Rice to Forty Centuries of Agriculture, pp. 430-432
W. F. Gericke
The Morphology of Haemoproteus Lophortyx Sp. Nov., p. 432
Earl C. O'Roke


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1817, Oct. 25, 1929
Next Issue: New Series, Vol. 70, No. 1819, Nov. 8, 1929



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Science, New Series, Vol. 70, No. 1819, Nov. 8, 1929


Previous Issue: New Series, Vol. 70, No. 1818, Nov. 1, 1929
Next Issue: New Series, Vol. 70, No. 1820, Nov. 15, 1929


Front Matter (4 pp.)
Surface Structure and Atom Building, pp. 433-442
W. D. Harkins


The American Association for the Advancement of Science
The Regular Fall Meeting of the Executive Committee, pp. 442-443
Burton E. Livingston


Obituary
Edwin E. Slosson, pp. 443-444
H. E. Howe
Recent Deaths, p. 444


Scientific Events
The Florida Anthropoid Laboratory of Yale University, pp. 444-445
The Chemical Laboratory at the University of New Hampshire, p. 445
The De Lamar Lectures at the Johns Hopkins University, pp. 445-446
Degrees Conferred by Columbia University, p. 446
In Honor of Mme. Curie, pp. 446-447


Scientific Notes and News, pp. 447-450
University and Educational Notes, pp. 450-451


Discussion
Collecting in the Lower Eocene, p. 451
Edward L. Troxell
Concerning the Mediterranean Fruit fly, pp. 451-453
G. F. Ferris
The Micrometric Muddle, p. 453
John P. Camp
Oestrus during Pregnancy, pp. 453-454
Warren O. Nelson
Alcaligenes Abortus from the Spinal Fluid, p. 454
Frederick W. Shaw


Reports
The New England Intercollegiate Geological Excursion, pp. 454-455
W. G. Foye


Scientific Apparatus and Laboratory Methods
A Useful Modification of Amann's Medium, p. 455
Wm. H. Weston
A Circuit Breaker for Water-Cooled X-Ray Tubes, pp. 455-456
A. A. Bless


Special Articles
Vitamin B Deficiency in Nursing Young Rats and Learning Ability, pp. 456-458
Siegfried Maurer; Loh Seng Tsai
Saving Time and Storage in Breeding Sugar-Beets, p. 458
George Stewart


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1818, Nov. 1, 1929
Next Issue: New Series, Vol. 70, No. 1820, Nov. 15, 1929



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Science, New Series, Vol. 70, No. 1820, Nov. 15, 1929


Previous Issue: New Series, Vol. 70, No. 1819, Nov. 8, 1929
Next Issue: New Series, Vol. 70, No. 1821, Nov. 22, 1929


Front Matter (4 pp.)
The Instruments of Plant Biology, pp. 459-463
H. A. Spoehr

Surface Structure and Atom Building. II, pp. 463-470
W. D. Harkins


The American Association for the Advancement of Science
The Present Enrolment, pp. 470-471
Burton E. Livingston


Obituary
Horace Bushnell Patton, pp. 471-472
Alfred C. Lane
Memorials, p. 472
Recent Deaths, pp. 472-473


Scientific Events
Activities of the Rockefeller Foundation, p. 473
Lectures before the Mayo Foundation, pp. 473-474
Symposium on Aircraft Materials of the American Society for Testing Materials, p. 474
Astronomers Carrying on Researches at the Harvard Observatory, pp. 474-475
The Scientific Book Club, p. 475


Scientific Notes and News, pp. 476-477
University and Educational Notes, p. 478


Discussion
The Occurrence of Rotenone in the Peruvian Fish Poison ``Cube'', pp. 478-479
E. P. Clark
On the Properties of the Electron, p. 479
R. D. Kleeman
Manayunkia Speciosa (Leidy) in the Duluth Harbor, pp. 479-480
O. Lloyd Meehean
Some Additional Stories about Scientific Names, p. 480
Robert S. Breed


Reports
The National Research Council's Grants-In-Aid, pp. 480-481
Vernon Kellogg
Grants from the Elizabeth Thompson Science Fund, pp. 481-482


Scientific Apparatus and Laboratory Methods
Method for Concentrating and Sectioning Protozoa, pp. 482-483
Miriam Scott Lucas


Special Articles
Insular Biota and Dispersal Agents, pp. 483-484
Arthur Paul Jacot
Cycles in the Prenatal Growth of the Domestic Fowl, p. 484
Alexis L. Romanoff


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1819, Nov. 8, 1929
Next Issue: New Series, Vol. 70, No. 1821, Nov. 22, 1929



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Science, New Series, Vol. 70, No. 1821, Nov. 22, 1929


Previous Issue: New Series, Vol. 70, No. 1820, Nov. 15, 1929
Next Issue: New Series, Vol. 70, No. 1822, Nov. 29, 1929


Front Matter (4 pp.)
The Binding Influence of a Library on a Subdividing Profession, pp. 485-491
Harvey Cushing

The Place of Geology Among the Sciences, pp. 491-493
John C. Merriam


Obituary
Toshiki Morishita, p. 493
Leo F. Rettger
Recent Deaths, pp. 493-494


Scientific Events
The Cambridge Low Temperature Research Station, p. 494
Land for Forest Reservations, pp. 494-495
The New York Association of Biology Teachers, p. 495
Permanent Science Fund, pp. 495-496
Edwin B. Wilson
Psychiatry and Mental Hygiene in Yale School of Medicine, p. 496


Scientific Notes and News, pp. 496-500
University and Educational Notes, p. 500


Discussion
Pharmacological Injections and Physiological Inferences, pp. 500-501
W. B. Cannon
A Peculiar Lightning Phenomenon, pp. 501-502
George Winchester
The Public Funds, p. 502
T. D. A. Cockerell
The Publication of Papers from Research Institutions, p. 502
C. E. Kenneth Mees


Scientific Books
----------------, pp. 503-505
A Handbook of the Dragon-Flies of North America
James G. Needham; Hortense B. Heywood
Review author[s]: Clarence Hamilton Kennedy


Scientific Apparatus and Laboratory Methods
A Method of Recording Maximum and Minimum Temperatures of Forest Soils, pp. 505-506
E. W. Gemmer
A Quantitative Closing Net for Catching Plankton Organisms, pp. 506-507
Winfred Emory Allen


Special Articles
Some Physicochemical Aspects of Life, Mutation and Evolution, pp. 508-510
Jerome Alexander; Calvin B. Bridges


Science News, pp. x+xii+xiv
Back Matter (4 pp.)

Previous Issue: New Series, Vol. 70, No. 1820, Nov. 15, 1929
Next Issue: New Series, Vol. 70, No. 1822, Nov. 29, 1929



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Science, New Series, Vol. 70, No. 1822, Nov. 29, 1929


Previous Issue: New Series, Vol. 70, No. 1821, Nov. 22, 1929
Next Issue: New Series, Vol. 70, No. 1823, Dec. 6, 1929


Front Matter (4 pp.)
The American Association for the Advancement of Science: Preliminary Announcement of the Des Moines Meeting, pp. 511-530
Burton E. Livingston


Obituary
Henry Daggett Hooker, Jr., p. 531
A. E. Murneek
Recent Deaths, p. 531


Scientific Events
Explorations in China, pp. 531-532
Cancer Research in England, p. 532
Forest Education, p. 532
The Fiftieth Anniversary of the American Society of Mechanical Engineers, pp. 532-533


Scientific Notes and News, pp. 533-536
University and Educational Notes, p. 536


Discussion
The Falling of the Dew, p. 537
W. J. Humphreys
Retreat of Cavell Glacier, pp. 537-538
E. L. Perry
Outcrop Vs. Exposure, p. 538
Herbert P. Woodward
On New Laws for the Solar System, p. 538
A. E. Caswell
Continued Growth of American Chestnut, p. 538
Arthur P. Kelley


Special Articles
The Protozoa of Wild Monkeys, pp. 539-540
Robert Hegner
Velocity of Chemical Reactions, p. 540
Theodore W. Evans; William M. Dehn


New Scientific Books, p. 540
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1821, Nov. 22, 1929
Next Issue: New Series, Vol. 70, No. 1823, Dec. 6, 1929



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Science, New Series, Vol. 70, No. 1823, Dec. 6, 1929


Previous Issue: New Series, Vol. 70, No. 1822, Nov. 29, 1929
Next Issue: New Series, Vol. 70, No. 1824, Dec. 13, 1929


Front Matter (4 pp.)
Waves and Particles, pp. 541-546
George P. Thomson


The American Association for the Advancement of Science
The Des Moines Prize, pp. 546-547
Burton E. Livingston


Scientific Events
Forestry Research in India, p. 547
Dedication of the George Herbert Jones Laboratory of the University of Chicago, pp. 547-548
Commander Byrd's Antarctic Explorations, pp. 548-549
Destruction of the Non-Magnetic Ship ``Carnegie'', p. 549


Scientific Notes and News, pp. 549-553
University and Educational Notes, pp. 553-554


Discussion
A Geological Survey of California, p. 554
Olaf P. Jenkins
Note on the Higher Alcohols of Fermentation, pp. 554-555
Joseph Swenarton
People Attacked by Owls, pp. 555-556
Charles Macnamara; A. Sion; Maurice Ricker; W. P. Flint
Synchronous Flashing of Fireflies, p. 556
S. Francis Howard


Scientific Apparatus and Laboratory Methods
``Vitality'' Stains, pp. 556-557
Roberts Rugh
An Ichthyometer, pp. 557-558
Warren P. Spencer


Special Articles
Potassium in Relation to the Shape of the Sweet Potato, p. 558
W. R. Robbins; G. T. Nightingale; L. G. Schermerhorn; M. A. Blake


The National Academy of Sciences, pp. 559-562
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1822, Nov. 29, 1929
Next Issue: New Series, Vol. 70, No. 1824, Dec. 13, 1929



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Science, New Series, Vol. 70, No. 1824, Dec. 13, 1929


Previous Issue: New Series, Vol. 70, No. 1823, Dec. 6, 1929
Next Issue: New Series, Vol. 70, No. 1825, Dec. 20, 1929


Front Matter (5 pp.)
Anatomy as a Science, pp. 563-566
S. R. Detwiler

Sympathetic Magic in Modern Guises, pp. 566-568
Knight Dunlap


The American Association for the Advancement of Science
Life Membership, pp. 568-570
Burton E. Livingston


Obituary
John Sterling Kingsley, pp. 570-572
H. V. Neal
Recent Deaths, pp. 572-573


Scientific Events
Recent Acquisitions of the British Museum, p. 573
Scientific Study in the Arctic and Antarctic Regions, pp. 573-574
The National Parks, p. 574
A Philadelphia Scientific Museum in Memory of Benjamin Franklin, p. 574
Annual Exhibition of the Carnegie Institution, pp. 574-575


Scientific Notes and News, pp. 575-578
University and Educational Notes, pp. 578-579


Discussion
Recent Discussions of the Reduction Division in Drosophila Melanogaster, pp. 579-580
Edward C. Jeffrey
The Decomposition of Ozone in the Presence of Nitrogen Pentoxide, pp. 580-581
Martin E. Nordberg
Mechanics of Fluids in Recent Text-Books of Physics, p. 581
G. E. Owen
Petrified Wood in the New Albany Shale, pp. 581-582
Chester A. Arnold


Scientific Apparatus and Laboratory Methods
An Automatic Microspirometer, pp. 582-583
Ernest B. Hanan


Special Articles
Cow's Milk as a Source of Vitamin B for Lactation, pp. 583-584
Barnett Sure


The National Academy of Sciences. II, pp. 584-588
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1823, Dec. 6, 1929
Next Issue: New Series, Vol. 70, No. 1825, Dec. 20, 1929



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Science, New Series, Vol. 70, No. 1825, Dec. 20, 1929


Previous Issue: New Series, Vol. 70, No. 1824, Dec. 13, 1929
Next Issue: New Series, Vol. 70, No. 1826, Dec. 27, 1929


Front Matter (5 pp.)
Zones of Weakness in the Earth's Crust, pp. 589-592
William Bowie

Periodicals for Mathematicians, pp. 592-594
Edward S. Allen


The American Association for the Advancement of Science
General Lectures for the Des Moines Meeting, pp. 594-595
Burton E. Livingston
Notices and Reports for 1929, Including Preparations for the Des Moines Meeting, pp. 595-596
Burton E. Livingston


Obituary
Harry Taylor Marshall, pp. 596-597
H. E. Jordan
Louis Capitan, pp. 598-599
N. C. Nelson
Alexander Vasilievitch Vasiliev, pp. 599-600
Alfred Korzybski
Recent Deaths, p. 600
Memorials, p. 600


Scientific Events
Astronomy in South Africa, p. 600
Organization of Virginia Ornithologists, p. 601
The Nobel Prizes, p. 601
The First International Congress on Mental Hygiene, pp. 601-602


Scientific Notes and News, pp. 602-605
University and Educational Notes, p. 606


Discussion
M Mu Versus Mu Mu, pp. 606-608
H. S. Uhler
Mathematics and the Truth, pp. 608-609
G. A. Miller
The Devono-Mississippian Boundary in the Southeastern United States, p. 609
J. H. Swartz
Porto Rican and Dominican Stratigraphy, p. 609
Carlotta J. Maury
``Feed a Cold and Starve a Fever'', p. 610
W. J. Humphreys


Quotations
Biochemistry and Medicine, p. 610


Scientific Apparatus and Laboratory Methods
An Issue Raised in ``a New Type of Lysimeter at the New Jersey Agricultural Experiment Station'', pp. 611-612
C. A. Mooers; W. H. MacIntire


Special Articles
Transmission of Experimental Trachoma by Contact, pp. 612-613
Joseph R. Tyler
The Life History of the Swine Kidney Worm, pp. 613-614
Benjamin Schwartz; E. W. Price
Transmission Studies with the New Psyllid-Yellows Disease of Solanaceous Plants, p. 615
A. M. Binkley


The National Academy of Sciences. III, pp. 615-618
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 70, No. 1824, Dec. 13, 1929
Next Issue: New Series, Vol. 70, No. 1826, Dec. 27, 1929



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Science, New Series, Vol. 70, No. 1826, Dec. 27, 1929


Previous Issue: New Series, Vol. 70, No. 1825, Dec. 20, 1929
Next Issue: New Series, Vol. 71, No. 1827, Jan. 3, 1930


Front Matter (5 pp.)
The New Soil Science, pp. 619-622
P. E. Brown

Recent Progress in the History of Ancient Mathematics, pp. 622-624
Louis C. Karpinski


Obituary
Victor Clarence Vaughan, pp. 624-626
Frederick G. Novy
Memorials, p. 626
Recent Deaths, p. 626


Scientific Events
Gold, Silver, Copper, Lead and Zinc in the Eastern States, pp. 626-627
Collections for the Field Museum from Eastern Asia, pp. 627-628
Electrical Apparatus Presented by Columbia University to Edisonia, p. 628
The Society for Experimental Biology and Medicine of Southern California, pp. 628-629


Scientific Notes and News, pp. 629-632
University and Educational Notes, p. 632


Discussion
The Popularization of Science, pp. 632-634
William A. Hamor; Lawrence W. Bass
The Zodiacal Light, pp. 634-635
Harlan T. Stetson
Cranberry False-Blossom Disease Spread by a Leafhopper, p. 635
Irene D. Dobroscky
Cell Fusions in Fungous Hyphae, p. 635
Illo Hein
Information concerning Castoroides, p. 635
A. R. Cahn


Scientific Books
----------------, pp. 636-637
Introduction to Contemporary Civilization; an Orientation Course for College Students
Walter Libby
Review author[s]: Frederick E. Brasch


Scientific Apparatus and Laboratory Methods
Preserving Certain Green Algae in Natural Colors, p. 637
Mark Winton Woods


Special Articles
Ancient Migration Routes of Central Asia, pp. 638-639
Henry Fairfield Osborn
The Structural Correlation of Gitoxigenin with Digitoxigenin, pp. 639-640
Walter A. Jacobs; Edwin L. Gustus


Science News, pp. x+xii+xiv
Back Matter (4 pp.)

Previous Issue: New Series, Vol. 70, No. 1825, Dec. 20, 1929
Next Issue: New Series, Vol. 71, No. 1827, Jan. 3, 1930



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