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Table of Contents

February 01, 1961; vol. 47 no. 2

Biochemistry

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    SEQUENCE COMPLEMENTARITY OF T2-DNA AND T2-SPECIFIC RNA
    Benjamin D. Hall and S. Spiegelman
    PNAS February 1, 1961 47 (2) 137-146; https://doi.org/10.1073/pnas.47.2.137
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    FORMATION OF HETEROZYGOTES BY ANNEALING A MIXTURE OF TRANSFORMING DNAS
    Roger M. Herriott
    PNAS February 1, 1961 47 (2) 146-153; https://doi.org/10.1073/pnas.47.2.146
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    THE KINETICS OF CARRIER-MEDIATED ACTIVE TRANSPORT OF AMINO ACIDS
    John A. Jacquez
    PNAS February 1, 1961 47 (2) 153-163; https://doi.org/10.1073/pnas.47.2.153
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    THE ROLE OF PROTEIN SYNTHESIS IN EARLY ESTROGEN ACTION
    Gerald C. Mueller, John Gorski, and Yoshio Aizawa
    PNAS February 1, 1961 47 (2) 164-169; https://doi.org/10.1073/pnas.47.2.164

Botany

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    A KINETIN-LIKE COMPOUND IN MAIZE
    Carlos O. Miller
    PNAS February 1, 1961 47 (2) 170-174; https://doi.org/10.1073/pnas.47.2.170

Chemistry

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    STABILIZATION OF NH IN HYDROCARBON MATRICES AND ITS RELATION TO COMETARY PHENOMENA
    Jay A. Glasel
    PNAS February 1, 1961 47 (2) 174-180; https://doi.org/10.1073/pnas.47.2.174

Genetics

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    CORRELATED CHANGES IN ENVIRONMENT AND LETHAL FREQUENCY IN A NATURAL POPULATION OF DROSOPHILA MELANOGASTER
    H. T. Band and P. T. Ives
    PNAS February 1, 1961 47 (2) 180-185; https://doi.org/10.1073/pnas.47.2.180

Geophysics

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    THE FUNDAMENTAL FREE MODE OF THE EARTH'S INNER
    Louis B. Slichter
    PNAS February 1, 1961 47 (2) 186-190; https://doi.org/10.1073/pnas.47.2.186

Mathematics

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    THE CATEGORY OF TOPOLOGICAL OBJECTS
    Yeaton H. Clifton and J. Wolfgang Smith
    PNAS February 1, 1961 47 (2) 190-195; https://doi.org/10.1073/pnas.47.2.190
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    DEGREE OF APPROXIMATION TO A CONTINUOUS FUNCTION ON A NON-ANALYTIC CURVE
    W. E. Sewell
    PNAS February 1, 1961 47 (2) 195-202; https://doi.org/10.1073/pnas.47.2.195
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    SOME ASPECTS OF THE FERMAT PROBLEM (FIRST PAPER)
    H. S. Vandiver
    PNAS February 1, 1961 47 (2) 202-209; https://doi.org/10.1073/pnas.47.2.202
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    THE POSSIBILITY OF TSCHEBYCHEFF QUADRATURE ON INFINITE INTERVALS
    Herbert S. Wilf
    PNAS February 1, 1961 47 (2) 209-213; https://doi.org/10.1073/pnas.47.2.209

Microbiology

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    A RADIOBIOLOGICAL ANALOGY BETWEEN MEASLES VIRUS AND TEMPERATURE PHAGES
    Paul H. Ackerman and Francis L. Black
    PNAS February 1, 1961 47 (2) 213-220; https://doi.org/10.1073/pnas.47.2.213

Pathology

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    INVESTIGATION OF DISEASE RESISTANCE AND THE MATHEMATICAL PROBLEM OF PATTERNS
    Roger J. Williams
    PNAS February 1, 1961 47 (2) 221-224; https://doi.org/10.1073/pnas.47.2.221

Physics

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    EFFECT OF SURFACE TENSION ON THE KELVIN-HELMHOLTZ INSTABILITY OF TWO ROTATING FLUIDS
    Z. Alterman
    PNAS February 1, 1961 47 (2) 224-227; https://doi.org/10.1073/pnas.47.2.224
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    ON A MANY-DIMENSIONAL BWK APPROXIMATION
    Don H. Secrest and Joseph O. Hirschfelder
    PNAS February 1, 1961 47 (2) 227-240; https://doi.org/10.1073/pnas.47.2.227

ZoÖlogy

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    THE EFFECTS OF REDUCED COMPETITION IN BIRDS
    Kenneth Crowell
    PNAS February 1, 1961 47 (2) 240-243; https://doi.org/10.1073/pnas.47.2.240

Corrections

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    A Method for Defining Principal Modes of Nonlinear Systems Utilizing Infinite Determinants
    PNAS February 1, 1961 47 (2) 243;
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    On the Mutagenic Effect of Alkylating Agents
    PNAS February 1, 1961 47 (2) 243;
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    Regulation by Coliphage Lambda of the Expression of the Capacity to Synthesize a Sequence of Host Enzymes
    PNAS February 1, 1961 47 (2) 243;
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