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Volume 2(6);  June 1916
The cover of the journal
Anthropology
New Data on the Archaeology of Venezuela
Herbert J. Spinden
Proc Natl Acad Sci U S A. 1916 June; 2(6): 325–328.
PMCID: PMC1091020
Astronomy
The Pyranometer: An Instrument for Measuring Sky Radiation
C. G. Abbot and L. B. Aldrich
Proc Natl Acad Sci U S A. 1916 June; 2(6): 333–335.
PMCID: PMC1091022
Chemistry
Change of the Ionization of Salts in Alcoholic Solvents with the Concentration
Frederick G. Keyes and W. J. Winninghoff
Proc Natl Acad Sci U S A. 1916 June; 2(6): 342–344.
PMCID: PMC1091026
Genetics
De Vriesian Mutation in the Garden Bean, Phaseolus Vulgaris
J. Arthur Harris
Proc Natl Acad Sci U S A. 1916 June; 2(6): 317–318.
PMCID: PMC1091017
Mathematics
Differential Equations and Implicit Functions in Infinitely Many Variables
William L. Hart
Proc Natl Acad Sci U S A. 1916 June; 2(6): 309–313.
PMCID: PMC1091015
Note on Lucas' Theorem
M. B. Porter
Proc Natl Acad Sci U S A. 1916 June; 2(6): 335–336.
PMCID: PMC1091023
A Variable System of Sevens on Two Twisted Cubic Curves
H. S. White
Proc Natl Acad Sci U S A. 1916 June; 2(6): 337–338.
PMCID: PMC1091024
Physics
Note on the Phosphorescence of Uranyl Salts
Edward L. Nichols
Proc Natl Acad Sci U S A. 1916 June; 2(6): 328–333.
PMCID: PMC1091021
Physiology
Studies of Ductless Glands by the Electrical Method
W. B. Cannon
Proc Natl Acad Sci U S A. 1916 June; 2(6): 319–320.
PMCID: PMC1091018
Zoology
The Sex of Parthenogenetic Frogs
Jacques Loeb
Proc Natl Acad Sci U S A. 1916 June; 2(6): 313–317.
PMCID: PMC1091016
The Distribution of the Chondriosomes to the Spermatozoa in Scorpions
Edmund B. Wilson
Proc Natl Acad Sci U S A. 1916 June; 2(6): 321–324.
PMCID: PMC1091019
The Neuromuscular Structure of Sea-Anemones
G. H. Parker and E. G. Titus
Proc Natl Acad Sci U S A. 1916 June; 2(6): 339–341.
PMCID: PMC1091025
Journal Matter
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