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Science, New Series, Vol. 78, No. 2015, Aug. 11, 1933


Previous Issue: New Series, Vol. 78, No. 2014, Aug. 4, 1933
Next Issue: New Series, Vol. 78, No. 2016, Aug. 18, 1933


Front Matter (1 p.)
Medicine, pp. 109-114
J. F. Fulton

Eurypterid Influence on Vertebrate History, pp. 114-117
Alfred S. Romer


Scientific Events
The Buckston Browne Surgical Research Farm, p. 117
The Dutch Elm Disease in New Jersey, pp. 117-118
The Rainbow Bridge-Monument Valley Expedition, pp. 118-119
The White Mountains Meeting of the American Forestry Association, pp. 119-120
Obituary, p. 120


Scientific Notes and News, pp. 120-122


Discussion
The Scientific Work of the Government, pp. 122-123
George B. Pegram; Arthur H. Compton; Bergen Davis; David Sinclair; William F. Brown
The Resultant Force Acting on a Solid Body Floating in a Bowl of Rotating Liquid, pp. 123-124
Will C. Baker
Selenium as an Insecticide, p. 124
E. M. Nelson; A. M. Hurd-Karrer; W. O. Robinson
The Chromosomes of Xiphophorus, Platypoecilus and Their Hybrids during Maturation Stages, pp. 124-125
E. M. Ralston
Influence of Gregarines on Growth in the Mealworm, p. 125
Ruth Sumner


Societies and Meetings
The North Carolina Academy of Science, pp. 125-126
H. R. Totten
The Indiana Academy of Science, p. 126
Will E. Edington


Reports
Appropriations for Grants-In-Aid by the National Research Council, pp. 126-128
Isaiah Bowman


Scientific Apparatus and Laboratory Methods
Lamellibranch Leucocytes as Living Material for Classroom Demonstration, p. 128
C. M. Breder; R. F. Nigrelli
Examination of the Reverse Side of Micro-Mounts, pp. 128-129
Arthur Paul Jacot
An Inexpensive Thermo-Regulator, p. 129
L. L. English


Special Articles
Early Changes in the Cerebrospinal Fluid of Monkeys Nasally Instilled with the Virus of Poliomyelitis, pp. 129-130
Simon Flexner
The Long and Short Wave-Length Limits of Photosynthesis, p. 130
G. Richard Burns


Books Received, p. 130
Science News, pp. 5a-7a
Back Matter (1 p.)

Previous Issue: New Series, Vol. 78, No. 2014, Aug. 4, 1933
Next Issue: New Series, Vol. 78, No. 2016, Aug. 18, 1933



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