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Volume 19(5);  May 1933
The cover of the journal
Anthropology
Notes on Blood-Groups and Race in the Pacific
William W. Howells
Proc Natl Acad Sci U S A. 1933 May; 19(5): 494–497.
PMCID: PMC1086056
Astronomy
A Physical Analysis of Wolf-Rayet Spectra
Cecilia H. Payne
Proc Natl Acad Sci U S A. 1933 May; 19(5): 492–494.
PMCID: PMC1086055
Genetics
Akhissar Spotting of the House Mouse
Clyde E. Keeler
Proc Natl Acad Sci U S A. 1933 May; 19(5): 477–481.
PMCID: PMC1086052
Geology
A Miacid from the Sespe Upper Eocene, California
Chester Stock
Proc Natl Acad Sci U S A. 1933 May; 19(5): 481–486.
PMCID: PMC1086053
Mathematics
The Cauchy-Goursat Theorem for Rectifiable Jordan Curves
J. L. Walsh
Proc Natl Acad Sci U S A. 1933 May; 19(5): 540–541.
PMCID: PMC1086062
An Inequality for Legendre Series Coefficients
M. F. Rosskopf
Proc Natl Acad Sci U S A. 1933 May; 19(5): 541–543.
PMCID: PMC1086063
The Geometry of Degenerate Heat Families
Aaron Fialkow
Proc Natl Acad Sci U S A. 1933 May; 19(5): 543–548.
PMCID: PMC1086064
On Statistical Methods in the Theory of Almost-Periodic Functions
E. K. Haviland
Proc Natl Acad Sci U S A. 1933 May; 19(5): 549–555.
PMCID: PMC1086065
Sylow Subgroups and the Number of Operators Whose Orders Are Powers of the Same Prime
G. A. Miller
Proc Natl Acad Sci U S A. 1933 May; 19(5): 555–558.
PMCID: PMC1086066
Values of Tμν and Christoffel Symbols for a Line Element of Considerable Generality
Herbert Dingle
Proc Natl Acad Sci U S A. 1933 May; 19(5): 559–563.
PMCID: PMC1086067
On Non-Factorable Transformations of Double Sequences
C. Raymond Adams
Proc Natl Acad Sci U S A. 1933 May; 19(5): 564–567.
PMCID: PMC1086068
The Method of Spectral Reduction in Classical Dynamics
A. Khintchine
Proc Natl Acad Sci U S A. 1933 May; 19(5): 567–573.
PMCID: PMC1086069
Questions of Relative Inclusion in the Domain of Hausdorff Means
Einar Hille and J. D. Tamarkin
Proc Natl Acad Sci U S A. 1933 May; 19(5): 573–577.
PMCID: PMC1086070
Finite Ova
E. T. Bell
Proc Natl Acad Sci U S A. 1933 May; 19(5): 577–579.
PMCID: PMC1086071
Pharmacology
Effect of Methylthionine Chloride on Phytotoxic Reaction of Normal and Pathological Blood
David I. Macht
Proc Natl Acad Sci U S A. 1933 May; 19(5): 486–491.
PMCID: PMC1086054
Physics
The Excitation Potential of the λ 2883 and λ 2895 Bands of Carbon Dioxide
Angus S. Roy and O. S. Duffendack
Proc Natl Acad Sci U S A. 1933 May; 19(5): 497–503.
PMCID: PMC1086057
Geometry of Four-Component Spinors
Oswald Veblen
Proc Natl Acad Sci U S A. 1933 May; 19(5): 503–517.
PMCID: PMC1086058
Contribution to the Theory of Scattering by a Force Center
E. H. Kennard
Proc Natl Acad Sci U S A. 1933 May; 19(5): 518–521.
PMCID: PMC1086059
Physiology
The Influence of Intensity, Color and Retinal Location on the Fusion Frequency of Intermittent Illumination
Selig Hecht and Cornelis D. Verrijp
Proc Natl Acad Sci U S A. 1933 May; 19(5): 522–535.
PMCID: PMC1086060
Zoölogy
Color Changes in Fundulus with Special Reference to the Color Changes of the Iridosomes
Kendall W. Foster
Proc Natl Acad Sci U S A. 1933 May; 19(5): 535–540.
PMCID: PMC1086061
Journal Matter
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