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Science, New Series, Vol. 103, No. 2679, May 3, 1946


Previous Issue: New Series, Vol. 103, No. 2678, Apr. 26, 1946
Next Issue: New Series, Vol. 103, No. 2680, May 10, 1946


Front Matter (2 pp.)
Hybrid Seed Corn, pp. 547-550
George Harrison Shull


Obituary
Thomas Hunt Morgan: 1866-1945, pp. 550-551
H. J. Muller
Clarence Erwin McClung: 1870-1946, pp. 551-552
D. H. Wenrich


Technical Papers
Occurrence of Mitotic Crossing-Over without Meiotic Crossing-Over, pp. 553-554
Germaine LeClerc
Linkage and Crossing-Over between Black Pigmentation and Susceptibility to Induced Fibrosarcoma in Mice, p. 554
Leonell C. Strong
Haploidy as a Factor in the Polymorphic Differentiation of the Hymenoptera, pp. 555-556
Stanley E. Flanders
Carcinogenic Substances from Pituitary Glands of Cattle, pp. 556-557
Henry K. Wachtel


Science Legislation
Statement concerning S. 1850, p. 558


News and Notes, pp. 559-566


In the Laboratory
Nucleosis of Skeletal Muscle: Its Value as a Biological Test, pp. 566-567
Rudolf Altschul
On the Fluorometric Determination of Nicotinamide, pp. 567-568
John V. Scudi
Chloride-Free Filter Paper, pp. 568-569
Daniel Cushing; Ralph N. Prince; Joseph Seiberlich


Letters to the Editor
Science and Mankind's Plight, pp. 569-570
G. Edgar Owen
The Atomic Bomb and the Anthropologists, p. 570
M. F. Ashley Montagu
Pathogenesis of Kernicterus, p. 570
Alexander S. Wiener; Matthew Brody
Genetics and Biological Theory, pp. 570+572
Alan Deakin
Are Scientists Irresponsibles?, pp. 572-573
L. A. Hawkins


Book Reviews
----------------, pp. 573-574
Chemical Crystallography: An Introduction to Optical and X-Ray Methods
C. W. Bunn
Review author[s]: Joseph S. Lukesh
----------------, p. 574
Principles of Dynamic Psychiatry: Including an Integrative Approach to Abnormal and Clinical Psychology
Jules H. Masserman
Review author[s]: Carl Binger
----------------, p. 574
Basic Electrical Engineering: Circuits, Machines, Electronics
A. E. Fitzgerald
Review author[s]: B. R. Teare

Previous Issue: New Series, Vol. 103, No. 2678, Apr. 26, 1946
Next Issue: New Series, Vol. 103, No. 2680, May 10, 1946



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