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Volume 15(6);  June 15, 1929
Astronomy
SOME NEW FEATURES OF THE ATMOSPHERIC OXYGEN BANDS, AND THE RELATIVE ABUNDANCE OF THE ISOTOPES O16, O18
Harold D. Babcock
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 471–477.
PMCID: PMC522492
Botany
STUDIES ON THE GROWTH OF ROOT HAIRS IN SOLUTIONS. THE PH MOLAR RATE RELATION FOR BRASSICA OLERACEA IN CALCIUM SULPHATE
Wanda K. Farr
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 464–470.
PMCID: PMC522491
Chemistry
THE RATE OF DECOMPOSITION OF NITROGEN PENTOXIDE AT MODERATELY LOW PRESSURE
H. C. Ramsperger, M. E. Nordberg, and R. C. Tolman
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 453–459.
PMCID: PMC522488
TYPES OF UNIMOLECULAR REACTIONS
Oscar Knefler Rice
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 459–462.
PMCID: PMC522489
THE VALENCE OF SULFUR IN DITHIONATES
Ralph E. Winger and Don M. Yost
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 462–464.
PMCID: PMC522490
Genetics
THE OCCURRENCE OF A NICOTIANA GLUTINOSA HAPLONT
Thomas Harper Goodspeed and Priscilla Avery
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 502–504.
PMCID: PMC522496
Geology and Paleontology
FOSSIL PLANTS AND MOUNTAIN UPLIFT IN THE PACIFIC STATES
Edward W. Berry
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 477–480.
PMCID: PMC522493
Mathematics
ON THE LINEAR CONNECTION INDEX OF THE ALGEBRAIC SURFACES zn = (fx, y)
Oscar Zariski
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 494–501.
PMCID: PMC522495
Physics
FURTHER REMARKS CONCERNING THERMIONIC “A” AND “b,” A REVISION AND EXTENSION
Edwin H. Hall
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 504–514.
PMCID: PMC522497
ON THE RAMAN EFFECT IN DIATOMIC GASES. II
F. Rasetti
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 515–519.
PMCID: PMC522498
ON THE THEORY OF ELECTRON SCATTERING IN GASES
Allan C. G. Mitchell
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 520–525.
PMCID: PMC522499
MOLECULAR BINDING AND LOW 5S TERMS OF N+ AND C
Louis A. Turner
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 526–528.
PMCID: PMC522500
WAVE-LENGTH OF THE K LINES OF COPPER USING RULED GRATINGS
J. A. Bearden
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 528–533.
PMCID: PMC522501
EFFECT OF VOLUME CHANGES ON THE INFRA-RED VIBRATIONS OF SIMPLE CRYSTALS
E. O. Salant
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 533–537.
PMCID: PMC522502
Zoölogy
THE ANALYSIS OF A CONCRETE CASE OF INTERGRADATION BETWEEN TWO SUBSPECIES. II. ADDITIONAL DATA AND INTERPRETATIONS
Francis B. Sumner
Proc Natl Acad Sci U S A. 1929 June 15; 15(6): 481–493.
PMCID: PMC522494
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