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Volume 27(4);  April 15, 1941
Genetics
X-Ray Induced Chromosome Rearrangements in the Females of Sciara
J. Paul Reynolds
Proc Natl Acad Sci U S A. 1941 April 15; 27(4): 204–208.
PMCID: PMC1078305
Mathematics
Maximal Subgroups of a Finite Group
G. A. Miller
Proc Natl Acad Sci U S A. 1941 April 15; 27(4): 212–216.
PMCID: PMC1078307
On Functions Whose Derivatives Do Not Vanish in a Given Interval
George Polya
Proc Natl Acad Sci U S A. 1941 April 15; 27(4): 216–218.
PMCID: PMC1078308
Note on a Canonical Form for the Linear q-Difference System
George D. Birkhoff and Paul E. Guenther
Proc Natl Acad Sci U S A. 1941 April 15; 27(4): 218–222.
PMCID: PMC1078309
On the Stability of the Linear Functional Equation
D. H. Hyers
Proc Natl Acad Sci U S A. 1941 April 15; 27(4): 222–224.
PMCID: PMC1078310
Physics
The Infra-Red Spectra of SiH4 and GeH4
Charles H. Tindal, Joseph W. Straley, and Harald H. Nielsen
Proc Natl Acad Sci U S A. 1941 April 15; 27(4): 208–212.
PMCID: PMC1078306
Physiology and Biochemistry
Vitamin B Requirements of Drosophila Melanogaster
E. L. Tatum
Proc Natl Acad Sci U S A. 1941 April 15; 27(4): 193–197.
PMCID: PMC1078303
Zoölogy and Anatomy
The Electric Stimulation of the Concentrating (Adrenergic) and the Dispersing (Cholinergic) Nerve-Fibres of the Melanophores in the Catfish
G. H. Parker and A. Rosenblueth
Proc Natl Acad Sci U S A. 1941 April 15; 27(4): 198–204.
PMCID: PMC1078304
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