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Volume 27(6);  June 15, 1941
Astronomy
On a Cluster of Nebulae in Hydra
F. Zwicky
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 264–269.
PMCID: PMC1078319
Chemistry
Riboflavin Contents of Tissues as Stabilized in the Adult at Liberal Levels of Intake
F. O. Van Duyne and H. C. Sherman
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 289–291.
PMCID: PMC1078323
The Physico-Chemical Structure of the Salivary Gland Chromosomes: II
M. Calvin and M. Kodani
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 291–300.
PMCID: PMC1078324
Certain Singular Points on Crystallization Curves of Solid Solutions
Norman L. Bowen
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 301–309.
PMCID: PMC1078325
Genetics
Dominant vs. Recessive Lethal Mutation
E. R. Dempster
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 249–250.
PMCID: PMC1078315
Linkage Studies of the Rat (Rattus Norvegicus): IV
W. E. Castle, Helen Dean King, and Amy L. Daniels
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 250–254.
PMCID: PMC1078316
The Effect of Adult Body Color Mutations upon the Larva of Drosophila Melanogaster
Katherine S. Brehme
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 254–261.
PMCID: PMC1078317
Mathematics
A Generalization of the Euclidian Algorithm to Several Dimensions
Barkley Rosser
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 309–311.
PMCID: PMC1078326
On the Problem of Analyticity in Dynamics
Aurel Wintner
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 311–314.
PMCID: PMC1078327
A Generalization of Fréchet's Differential
D. H. Hyers
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 315–316.
PMCID: PMC1078328
A Generalization of the Dirac Equations
Edward N. Lorenz
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 317–322.
PMCID: PMC1078329
Generalization of Completely Convex Functions
R. P. Boas, Jr. and G. Pólya
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 323–325.
PMCID: PMC1078330
Natural Systems: The Structure of Abstract Monotone Sequences
Alfred L. Foster
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 325–327.
PMCID: PMC1078331
The Method of the Minimum Integral and Analytic Continuation of Functions of Complex Variables
Stefan Bergman
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 328–332.
PMCID: PMC1078332
Physics
Invariant Forms of Interaction between Nuclear Particles
L. Eisenbud and E. P. Wigner
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 281–289.
PMCID: PMC1078322
Physiology and Biochemistry
The Spermatophores of Triturus Torosus and Triturus Rivularis
Robert Emrie Smith
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 261–264.
PMCID: PMC1078318
Enzymes in Ontogenesis: XVI. Activation of Protyrosinase by Sodium Alkyl Sulfates,
Thomas Hunter Allen and Joseph Hall Bodine
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 269–276.
PMCID: PMC1078320
Zoölogy and Anatomy
Field Properties of the Developing Frog's Egg
H. S. Burr
Proc Natl Acad Sci U S A. 1941 June 15; 27(6): 276–281.
PMCID: PMC1078321
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