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Science, New Series, Vol. 29, No. 731, Jan. 1, 1909


Previous Issue: New Series, Vol. 28, No. 730, Dec. 25, 1908
Next Issue: New Series, Vol. 29, No. 732, Jan. 8, 1909


Volume Information (8 pp.)
Front Matter (1 p.)


The American Association for the Advancement of Science
Science and the Practical Problems of the Future, pp. 1-10
Edward L. Nichols


University Registration Statistics, pp. 10-21
Rudolf Tombo

The National Geographic Society, p. 21
A Bibliography on Science Teaching, pp. 21-22
Scientific Notes and News, pp. 22-25
The Morley Chemical Laboratory of Western Reserve University, p. 25
University and Educational News, pp. 25-26


Discussion and Correspondence
The ``Pinch-Effect'' in Unidirectional Electric Sparks, pp. 26-27
Andrew H. Patterson
Mr. Manson's Theory of Geological Climates, pp. 27-29
Harry Fielding Reid
On Misleading Statements, pp. 29-31
C. C. Guthrie
William Keith Brooks, p. 31
E. A. Andrews


Scientific Books
----------------, p. 32
A Key for the Determination of Rock-Forming Minerals in Thin Sections
Albert Johannsen
Review author[s]: L. McI. L.
----------------, pp. 32-34
Southern Agriculture
F. S. Earle
Review author[s]: R. J. H. DeLoach
----------------, p. 34
Bermuda in Periodical Literature
George Watson Cole
Review author[s]: C. L. Bristol


Scientific Journals and Articles, pp. 34-35
The Newest Ancient Man, p. 35
Vernon L. Kellogg

The Indiana University Expedition to British Guiana, pp. 35-36


Special Articles
Spectrum of Comet Morehouse, pp. 36-37
Edwin B. Frost; J. A. Parkhurst
A Simplified Apparatus for Drawing with the Aid of the Projection Microscope, pp. 37-38
Wm. A. Riley


Societies and Academies, pp. 38-40

Previous Issue: New Series, Vol. 28, No. 730, Dec. 25, 1908
Next Issue: New Series, Vol. 29, No. 732, Jan. 8, 1909



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