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Science, New Series, Vol. 41, No. 1057, Apr. 2, 1915


Previous Issue: New Series, Vol. 41, No. 1056, Mar. 26, 1915
Next Issue: New Series, Vol. 41, No. 1058, Apr. 9, 1915


Front Matter (3 pp.)
Mycology in Relation to Phytopathology, pp. 479-484
C. L. Shear

Edward Weston's Inventions, pp. 484-492
L. H. Baekeland

Note on the Orbits of Freely Falling Bodies, pp. 492-495
R. S. Woodward

Arthur Von Auwers, pp. 495-497
R. G. Aitken

Scientific Notes and News, pp. 497-501
University and Educational News, p. 501


Discussion and Correspondence
Evidence Bearing on the Origin of Human Twins from a Single Ovum, pp. 501-502
Margaret V. Cobb
Naturalist's Directory, p. 502
S. E. Cassino


Scientific Books
----------------, pp. 502-504
Die Variolation in achtzehnten Jahrhundert. Ein historischer Beitrag zur Immunitätsforschung
Arnold C. Klebs
Review author[s]: F. H. Garrison
----------------, pp. 504-505
A Primer on Alternating Currents
W. G. Rhodes
Review author[s]: Ralph R. Lawrence
----------------, p. 505
Alternating Current Machinery
Barr; Archibald
Review author[s]: Ralph R. Lawrence


Special Articles
Interpolation as a Means of Approximation to the Gamma Function for High Values of n, pp. 506-507
Raymond Pearl


The Geological Society of America, pp. 507-514
Edmund Otis Hovey

Previous Issue: New Series, Vol. 41, No. 1056, Mar. 26, 1915
Next Issue: New Series, Vol. 41, No. 1058, Apr. 9, 1915



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