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Science, New Series, Vol. 54, No. 1387, Jul. 29, 1921


Previous Issue: New Series, Vol. 54, No. 1386, Jul. 22, 1921
Next Issue: New Series, Vol. 54, No. 1388, Aug. 5, 1921


Front Matter (1 p.)
``Progressive Education'' in the Teaching of Pathology, pp. 81-84
Howard T. Karsner

A Novel Magneto-Optical Effect, pp. 84-85
Elihu Thomson


Scientific Events
Thomas Harriot, pp. 85-86
The International Institute of Agriculture, pp. 86-87
The Edinburgh Meeting of the British Association, p. 87


Scientific Notes and News, pp. 87-90
University and Educational News, p. 90


Discussion and Correspondence
A Living Galvanometer, pp. 90-91
George G. Scott; Joseph Tulgan
An Exception to Dollo's Law of the Ir-Reversibility of Evolution, pp. 91-92
G. C. Crampton


Scientific Books
Jonston's Natural History of Fishes, pp. 92-93
Review author[s]: David Starr Jordan


Special Articles
On a Method of Estimating the Number of Genetic Factors Concerned in Cases of Blending Inheritance, pp. 93-96
W. E. Castle


The Utah Academy of Sciences, pp. 96-97
C. Arthur Smith

The American Association for the Advancement of Science, p. 98
E. A. Hooton

Previous Issue: New Series, Vol. 54, No. 1386, Jul. 22, 1921
Next Issue: New Series, Vol. 54, No. 1388, Aug. 5, 1921



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