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Volume 13(12);  December 1927
Astronomy
A Note on the Triple System, λ Tauri
Paul Slavenas
Proc Natl Acad Sci U S A. 1927 December; 13(12): 833–837.
PMCID: PMC1085257
Biology
The Penetration of Methylene Blue into Living Cells
Matilda Moldenhauer Brooks
Proc Natl Acad Sci U S A. 1927 December; 13(12): 821–823.
PMCID: PMC1085254
Chemistry
The Thermal and Photochemical Decomposition of Azo Compounds and the Problem of Reaction Rates
Herman C. Ramsperger
Proc Natl Acad Sci U S A. 1927 December; 13(12): 849–853.
PMCID: PMC1085261
Mathematics
The Residual Set of a Complex on a Manifold and Related Questions (Second Note)
S. Lefschetz
Proc Natl Acad Sci U S A. 1927 December; 13(12): 805–807.
PMCID: PMC1085250
Power Series Expansions in the Neighborhood of a Point on a Surface
Ernest P. Lane
Proc Natl Acad Sci U S A. 1927 December; 13(12): 808–813.
PMCID: PMC1085251
The Analysis and Analysis Situs of Regular n-Spreads in (n + r)-Space
Marston Morse
Proc Natl Acad Sci U S A. 1927 December; 13(12): 813–817.
PMCID: PMC1085252
Physics
X-Ray Diffraction in Liquids: Saturated Normal Fatty Acids. Isomers of Primary Normal Alcohols and Normal Paraffins
G. W. Stewart
Proc Natl Acad Sci U S A. 1927 December; 13(12): 787–789.
PMCID: PMC1085245
The Structure and Dimensions of the Benzene Ring
Jared Kirtland Morse
Proc Natl Acad Sci U S A. 1927 December; 13(12): 789–793.
PMCID: PMC1085246
The Space Group of Potassium, Rubidium and Caesium Sulphates
Frank Peat Goeder
Proc Natl Acad Sci U S A. 1927 December; 13(12): 793–797.
PMCID: PMC1085247
The Diamagnetic Susceptibility of Hydrogen Molecule and of Helium in the New Quantum Mechanics
S. C. Wang
Proc Natl Acad Sci U S A. 1927 December; 13(12): 798–800.
PMCID: PMC1085248
On the Quantum Theory of the Polarization of Impact Radiation
J. R. Oppenheimer
Proc Natl Acad Sci U S A. 1927 December; 13(12): 800–805.
PMCID: PMC1085249
Physiology
Quantitative Aspects of Tonic Immobility in Vertebrates
Hudson Hoagland
Proc Natl Acad Sci U S A. 1927 December; 13(12): 838–843.
PMCID: PMC1085258
Psychology
Sensori-Motor Consequences of Passive Rotary and Rectilinear Oscillation of the Body
Roland C. Travis and Raymond Dodge
Proc Natl Acad Sci U S A. 1927 December; 13(12): 843–846.
PMCID: PMC1085259
Foster Parent-Foster Child Comparisons as Evidence upon the Nature-Nurture Problem
Barbara Stoddard Burks
Proc Natl Acad Sci U S A. 1927 December; 13(12): 846–848.
PMCID: PMC1085260
Statistics
On Certain Properties of Frequency Distributions of the Powers and Roots of the Variates of a Given Distribution
H. L. Rietz
Proc Natl Acad Sci U S A. 1927 December; 13(12): 817–820.
PMCID: PMC1085253
Zoölogy
Studies on the Effect of Potassium Alum-Hydrochloric Acid Solutions on the Growth and Fate of Neoplastic Tissue: II. Result Obtained on a Rapidly Growing Transplantable Sarcoma of the Mouse
Leonell C. Strong
Proc Natl Acad Sci U S A. 1927 December; 13(12): 823–827.
PMCID: PMC1085255
The Influence of a Power Dam in Modifying Conditions Affecting the Migration of the Salmon
Henry B. Ward
Proc Natl Acad Sci U S A. 1927 December; 13(12): 827–833.
PMCID: PMC1085256
Journal Matter
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