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Science, New Series, Vol. 30, No. 775, Nov. 5, 1909


Previous Issue: New Series, Vol. 30, No. 774, Oct. 29, 1909
Next Issue: New Series, Vol. 30, No. 776, Nov. 12, 1909


Front Matter (1 p.)
The Quantitative Study of Organic Reactions, pp. 617-625
S. F. Acree

Bacteriology as a Non-Technical Course for Public Schools, pp. 625-628
H. W. Hill

Teaching by the Lecture System, pp. 628-630
Norman A. Dubois

Kakichi Mitsukuri, pp. 630-632
David Starr Jordan

The Western Excursion Following the Winnipeg Meeting of the British Association, pp. 632-633
F. P. Gulliver

Forest Products Investigation, pp. 633-635
American Association of Economic Entomologists, p. 635
W. E. Britton; A. F. Burgess

The Rockefeller Commission for the Eradication of Hookworm Disease, pp. 635-636
Scientific Notes and News, pp. 636-638
University and Educational News, pp. 638-639


Discussion and Correspondence
A Reply to Dr. Percival Lowell, pp. 639-641
F. R. Moulton
The Development of the Planetesimal Hypothesis, pp. 642-645
T. C. Chamberlin; F. R. Moulton
An Association of American Chemical Research Laboratories, pp. 645-646
M. A. Rosanoff
Family Records, p. 646
C. B. Davenport


Scientific Books
----------------, pp. 646-648
The Plankton of the Illinois River, 1894-1899
C. A. Kofoid
Review author[s]: C. Juday
----------------, p. 648
The Theory of Valency
J. Newton Friend
Review author[s]: Louis Kahlenberg


The Mechanics of Biology, pp. 649-650
Vernon L. Kellogg

Notes on Entomology, pp. 650-652
Nathan Banks


Special Articles
The Possible Effect of Cement Dust on Plants, pp. 652-654
George J. Peirce
The Algæ of the Ithaca Marshes, p. 654
H. A. Anderson
The Molecular Constitution of Solids, pp. 654-656
J. E. Siebel


Societies and Academies, p. 656

Previous Issue: New Series, Vol. 30, No. 774, Oct. 29, 1909
Next Issue: New Series, Vol. 30, No. 776, Nov. 12, 1909



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