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Volume 16(6);  June 15, 1930
The cover of the journal
Engineering
BENDING OF CURVED TUBES
William Hovgaard
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 444–451.
PMCID: PMC526667
Genetics
THE ORIGIN OF THE PLANTS OF MATERNAL TYPE WHICH OCCUR IN CONNECTION WITH INTERSPECIFIC HYBRIDIZATIONS
E. M. East
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 377–380.
PMCID: PMC526653
Mathematics
GROUP OF ISOMORPHISMS OF AN ABELIAN GROUP
G. A. Miller
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 398–401.
PMCID: PMC526658
COALESCENCE OF PARTS OF A COMPLEX
Arthur B. Brown
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 401–406.
PMCID: PMC526659
AN EXTENSION OF THE ALEXANDER DUALITY THEOREM
Arthur B. Brown
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 407–408.
PMCID: PMC526660
Physics
MORE COMPLETE DISCUSSION OF THE TIME-DEPENDENCE OF THE NON-STATIC LINE ELEMENT FOR THE UNIVERSE
Richard C. Tolman
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 409–420.
PMCID: PMC526661
THE SIGNIFICANCE OF RECENT COSMIC-RAY EXPERIMENTS
R. A. Millikan and I. S. Bowen
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 421–425.
PMCID: PMC526662
MOTION ON A LATTICE
C. Hewitt Dix
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 426–430.
PMCID: PMC526663
THE ABSORPTION COEFFICIENT OF HARD γ-RAYS
C. Y. Chao
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 431–433.
PMCID: PMC526664
Psychology
ON THE CONDITIONS OF ELICITATION OF CERTAIN EATING REFLEXES
B. F. Skinner
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 433–438.
PMCID: PMC526665
THE ENERGY REQUIREMENTS OF INTENSE MENTAL EFFORT
Francis G. Benedict and Cornelia Golay Benedict
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 438–443.
PMCID: PMC526666
Zoölogy
MELANOPHORE PULSATIONS IN THE ISOLATED SCALES OF FUNDULUS HETEROCLITUS
Dietrich C. Smith
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 381–385.
PMCID: PMC526654
DIURNAL RHYTHM OF THE DISTAL PIGMENT CELLS IN THE EYES OF CERTAIN CRUSTACEANS
John H. Welsh
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 386–395.
PMCID: PMC526655
THE COLOR CHANGES OF THE TREE TOAD IN RELATION TO NERVOUS AND HUMORAL CONTROL
G. H. Parker
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 395–396.
PMCID: PMC526656
Correction
EQUILIBRIUM CONSTANTS OF REACTIONS INVOLVING HYDROXYL: A CORRECTION
Proc Natl Acad Sci U S A. 1930 June 15; 16(6): 396–397.
PMCID: PMC526657
Corrects: Donald Statler Villars. THE EQUILIBRIUM CONSTANTS OF REACTIONS INVOLVING HYDROXYL. Proc Natl Acad Sci U S A. 1929 September 15; 15(9): 705–709.
Journal Matter
Administrative content — journal masthead, notices, indexes, etc.
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