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Volume 12(5);  May 1926
Astronomy
Radial Velocities of 368 Helium Stars
Edwin B. Frost, Storrs B. Barrett, and Otto Struve
Proc Natl Acad Sci U S A. 1926 May; 12(5): 283–285.
PMCID: PMC1084541
Visual Observations of the Solar Atmosphere
George E. Hale
Proc Natl Acad Sci U S A. 1926 May; 12(5): 286–295.
PMCID: PMC1084542
Chemistry
Capillary Condensation and Adsorption
William C. Bray and Hal D. Draper
Proc Natl Acad Sci U S A. 1926 May; 12(5): 295–299.
PMCID: PMC1084543
Genetics
Pollen Abortion in Chromosomal Types of Datura
A. F. Blakeslee and J. L. Cartledge
Proc Natl Acad Sci U S A. 1926 May; 12(5): 315–323.
PMCID: PMC1084547
Geology
The Compressibilities of Dunite and of Basalt Glass and Their Bearing on the Composition of the Earth
L. H. Adams and R. E. Gibson
Proc Natl Acad Sci U S A. 1926 May; 12(5): 275–283.
PMCID: PMC1084540
Mathematics
On Laguerre's Series: Third Note
Einar Hille
Proc Natl Acad Sci U S A. 1926 May; 12(5): 348–352.
PMCID: PMC1084555
On Conformal Geometry
Tracy Yerkes Thomas
Proc Natl Acad Sci U S A. 1926 May; 12(5): 352–359.
PMCID: PMC1084556
Concerning Indecomposable Continua and Continua Which Contain No Subsets That Separate the Plane
R. L. Moore
Proc Natl Acad Sci U S A. 1926 May; 12(5): 359–363.
PMCID: PMC1084557
Physics
Remarks on Penetrating Radiation
Edward Condon
Proc Natl Acad Sci U S A. 1926 May; 12(5): 323–326.
PMCID: PMC1084548
New Evidence in Favor of a Dual Theory of Metallic Conduction
Edwin H. Hall
Proc Natl Acad Sci U S A. 1926 May; 12(5): 326–328.
PMCID: PMC1084549
The Magnetic Moment of the Electron
R. de L. Kronig
Proc Natl Acad Sci U S A. 1926 May; 12(5): 328–330.
PMCID: PMC1084550
A Theorem on Space Quantization
R. de L. Kronig
Proc Natl Acad Sci U S A. 1926 May; 12(5): 330–334.
PMCID: PMC1084551
On the Heat Capacity of Non-Polar Solid Compounds
E. O. Salant
Proc Natl Acad Sci U S A. 1926 May; 12(5): 334–337.
PMCID: PMC1084552
Systematic Relations between Electronic Structure and Band-Spectrum Structure in Diatomic Molecules: III. Molecule Formation and Molecular Structure
Robert S. Mulliken
Proc Natl Acad Sci U S A. 1926 May; 12(5): 338–343.
PMCID: PMC1084553
On the Nature of Light
Richard C. Tolman and Sinclair Smith
Proc Natl Acad Sci U S A. 1926 May; 12(5): 343–347.
PMCID: PMC1084554
Physiology
The Physiological Principle of Minimum Work: II. Oxygen Exchange in Capillaries
Cecil D. Murray
Proc Natl Acad Sci U S A. 1926 May; 12(5): 299–304.
PMCID: PMC1084544
Zoölogy
Nuclear Division in the Trophozoites of Endamoeba Histolytica
Cesar Uribe
Proc Natl Acad Sci U S A. 1926 May; 12(5): 305–311.
PMCID: PMC1084545
The Effect of Hydrogen-Ion Concentration on Locomotion and Other Life-Processes in Amoeba Proteus
D. L. Hopkins
Proc Natl Acad Sci U S A. 1926 May; 12(5): 311–315.
PMCID: PMC1084546
Journal Matter
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