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Volume 11(1);  January 1925
The cover of the journal
Astronomy
Notes on Stellar Statistics: II: The Mathematical Expression of the Law of Tangential Velocities
Willem J. Luyten
Proc Natl Acad Sci U S A. 1925 January; 11(1): 87–90.
PMCID: PMC1085841
Bacteriology
Chemical Studies on Tuberculin
J. Howard Mueller
Proc Natl Acad Sci U S A. 1925 January; 11(1): 23–25.
PMCID: PMC1085821
Biology
On the Measurement of Critical Thermal Increment for Biological Processes
W. J. Crozier and H. Federighi
Proc Natl Acad Sci U S A. 1925 January; 11(1): 80–82.
PMCID: PMC1085838
Botany
Resin Canals in the Evolution of the Conifers
Edward C. Jeffrey
Proc Natl Acad Sci U S A. 1925 January; 11(1): 101–105.
PMCID: PMC1085846
The Origin of Parenchyma in Geological Time
Edward C. Jeffrey
Proc Natl Acad Sci U S A. 1925 January; 11(1): 106–110.
PMCID: PMC1085847
Chemistry
The Mechanism of Reactions in the Urea Series
Tenney L. Davis
Proc Natl Acad Sci U S A. 1925 January; 11(1): 68–73.
PMCID: PMC1085834
An Equation for the Haber Equilibrium
Louis J. Gillespie
Proc Natl Acad Sci U S A. 1925 January; 11(1): 73–74.
PMCID: PMC1085835
A Critical Potential of Methane and Its Absorption in the Ultra-Violet
George Glocker
Proc Natl Acad Sci U S A. 1925 January; 11(1): 74–77.
PMCID: PMC1085836
Studies in Catalysis
H. W. Underwood, Jr.
Proc Natl Acad Sci U S A. 1925 January; 11(1): 78–80.
PMCID: PMC1085837
Engineering
Mortar Strength, A Problem of Practical Statistics
John W. Gowen, H. Walter Leavitt, and Weston S. Evans
Proc Natl Acad Sci U S A. 1925 January; 11(1): 11–16.
PMCID: PMC1085819
Geology
The Cordierite-Anthophyllite Mineralization at Blue Hill, Maine and Its Relation to Similar Occurrences
Waldemar Lindgren
Proc Natl Acad Sci U S A. 1925 January; 11(1): 1–4.
PMCID: PMC1085817
Gel Replacement, A New Aspect of Metasomatism
Waldemar Lindgren
Proc Natl Acad Sci U S A. 1925 January; 11(1): 5–11.
PMCID: PMC1085818
Mathematics
Economics and the Calculus of Variations
G. C. Evans
Proc Natl Acad Sci U S A. 1925 January; 11(1): 90–95.
PMCID: PMC1085842
Separable Quadratic Differential Forms and Einstein Solutions
Edward Kasner
Proc Natl Acad Sci U S A. 1925 January; 11(1): 95–96.
PMCID: PMC1085843
On a New Method of Factorization
Derrick N. Lehmer
Proc Natl Acad Sci U S A. 1925 January; 11(1): 97–98.
PMCID: PMC1085844
Functionals of Curves Admitting One-Parameter Groups of Infinitesimal Point Transformation
Aristotle D. Michal
Proc Natl Acad Sci U S A. 1925 January; 11(1): 98–101.
PMCID: PMC1085845
Pathology
Microchemical Color Reactions as an Aid to the Identification and Classification of Brain Tumors
Percival Bailey and Harvey Cushing
Proc Natl Acad Sci U S A. 1925 January; 11(1): 82–84.
PMCID: PMC1085839
Virus Encephalitis in the Rabbit
Simon Flexner
Proc Natl Acad Sci U S A. 1925 January; 11(1): 84–87.
PMCID: PMC1085840
Physics
On Scattered Radiation Due to X-Rays from Molybdenum and Tungsten Targets
S. K. Allison and William Duane
Proc Natl Acad Sci U S A. 1925 January; 11(1): 25–27.
PMCID: PMC1085822
An Application of the Quantum Theory of Band Spectra to the First Negative Deslandres Group of Carbon
Charles M. Blackburn
Proc Natl Acad Sci U S A. 1925 January; 11(1): 28–34.
PMCID: PMC1085823
New Measurements of Planetary Radiation and Planetary Temperatures
W. W. Coblentz and C. O. Lampland
Proc Natl Acad Sci U S A. 1925 January; 11(1): 34–36.
PMCID: PMC1085824
The Number of Free Electrons with a Metal
Edwin H. Hall
Proc Natl Acad Sci U S A. 1925 January; 11(1): 36–38.
PMCID: PMC1085825
Recent Measurements of the Joule Effect for CO2
Frederick G. Keyes and Francis W. Sears
Proc Natl Acad Sci U S A. 1925 January; 11(1): 38–41.
PMCID: PMC1085826
The Comet Tail Spectrum and Deslandres' First Negative Group
Harvey B. Lemon
Proc Natl Acad Sci U S A. 1925 January; 11(1): 41–43.
PMCID: PMC1085827
The Periodic Structural Regularities in Spectra as Related to the Periodic Law of the Chemical Elements
W. F. Meggers
Proc Natl Acad Sci U S A. 1925 January; 11(1): 43–47.
PMCID: PMC1085828
Notes on Neodymium Oxide
E. L. Nichols
Proc Natl Acad Sci U S A. 1925 January; 11(1): 47–52.
PMCID: PMC1085829
Halogen Isotopes and Infra-Red Reflection Spectra
A. H. Pfund
Proc Natl Acad Sci U S A. 1925 January; 11(1): 53–55.
PMCID: PMC1085830
The Compton Effect with No Box around the Tube
P. A. Ross and D. L. Webster
Proc Natl Acad Sci U S A. 1925 January; 11(1): 56–61.
PMCID: PMC1085831
Compton Effect: Evidence on Its Relation to Duane's Box Effect
P. A. Ross and D. L. Webster
Proc Natl Acad Sci U S A. 1925 January; 11(1): 61–64.
PMCID: PMC1085832
Statistics
Skew-Growth Curves
Raymond Pearl and Lowell J. Reed
Proc Natl Acad Sci U S A. 1925 January; 11(1): 16–22.
PMCID: PMC1085820
Zoölogy
The Nature of the Association between Anthozoa and Zooxanthellae
H. Boschma
Proc Natl Acad Sci U S A. 1925 January; 11(1): 65–67.
PMCID: PMC1085833
Journal Matter
Original table of contents page
Administrative content — journal masthead, notices, indexes, etc.
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