Science, New Series, Vol. 51, No. 1309, Jan. 30, 1920

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Front Matter (1 p.)

The American Association for the Advancement of Science

The Message of the Biologist, pp. 93-102

William Patten

On Nipher's ``Gravitational'' Experiment and the Anomalies of the Moon's Motion, pp. 102-105

F. W. Very

Frank Perkins Whitman, pp. 105-106
Horatio C. Wood, pp. 106-107

Scientific Events

Water-Power and Dartmoor, pp. 107-108

Medical Education, pp. 108-109

Scientific Lectures, p. 109

The Illinois Academy of Sciences, pp. 109-110

Gift of the Carnegie Corporation to the National Academy of Sciences and the National Research Council, p. 110

Scientific Notes and News, pp. 110-112
University and Educational News, pp. 112-113

Discussion and Correspondence

Official Field Crop Inspection, pp. 113-114

Frank A. Spragg

Science and Politics, p. 115

T. D. A. Cockerell

Quotations

The Dues of the American Association and the Salaries of Scientific Men, pp. 115-116

Scientific Books

----------------, pp. 116-118

The System of the Sciences; Principles of the Theory of Education

Wilhelm Ostwald

Review author[s]: William A. Noyes

Special Articles

Drought and the Root-System of Eucalyptus, pp. 118-120

James McMurphy; George J. Peirce

The Mathematical Association of America, p. 120
Back Matter (1 p.)

Previous Issue: New Series, Vol. 51, No. 1308, Jan. 23, 1920
Next Issue: New Series, Vol. 51, No. 1310, Feb. 6, 1920