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In this Issue

Table of Contents

  1. Editorial: The Biology of Freedom
  2. D. J. I.
  3. pp. 141-142
  4. DOI: https://doi.org/10.1353/pbm.1964.0032
  5. restricted access
  1. Frank Libman Engel—an Appreciation
  2. Morton D. Bogdonoff
  3. pp. 143-144
  4. DOI: https://doi.org/10.1353/pbm.1964.0038
  5. restricted access
  1. An American by Choice: A Story about Dr. A. J. Carlson
  2. Lester R. Dragstedt
  3. pp. 145-158
  4. DOI: https://doi.org/10.1353/pbm.1964.0043
  5. restricted access
  1. Carriers in Communication and in Physiology
  2. Stanford Goldman
  3. pp. 159-168
  4. DOI: https://doi.org/10.1353/pbm.1964.0048
  5. restricted access
  1. The Evolutionary Theory of Sleep and Wakefulness
  2. Nathaniel Kleitman
  3. pp. 169-178
  4. DOI: https://doi.org/10.1353/pbm.1964.0053
  5. restricted access
  1. Physician, Pheal Thyself
  2. William M. Landau
  3. pp. 179-182
  4. DOI: https://doi.org/10.1353/pbm.1964.0058
  5. restricted access
  1. On the Nature of Macromolecular Coding in Neuronal Memory
  2. Oscar Hechter, Ian D. K. Halkerston
  3. pp. 183-198
  4. DOI: https://doi.org/10.1353/pbm.1964.0030
  5. restricted access
  1. Current Ideas in Neurobiology and "Neuropsychology": A Study in Contrasts
  2. F. M. R. Walshe
  3. pp. 199-218
  4. DOI: https://doi.org/10.1353/pbm.1964.0036
  5. restricted access
  1. A Model Simulating Some Properties of Living Matter: A Contribution in Abstract Biology
  2. Richard D. Baldwin
  3. pp. 219-226
  4. DOI: https://doi.org/10.1353/pbm.1964.0041
  5. restricted access
  1. The Impact of Rigid Definitions on Scientific Thinking
  2. D. B. Zilversmit
  3. pp. 227-248
  4. DOI: https://doi.org/10.1353/pbm.1964.0046
  5. restricted access

Brief Proposals

  1. A Molecular Theory for the Phenomenon of Sleep
  2. Ben Sheiner
  3. pp. 249-250
  4. DOI: https://doi.org/10.1353/pbm.1964.0051
  5. restricted access

Book Reviews

  1. Life and Disease Edited by Dwight J. Ingle (review)
  2. H. A. Krebs
  3. pp. 251-252
  4. DOI: https://doi.org/10.1353/pbm.1964.0056
  5. restricted access
  1. Nerve, Brain and Memory Models Edited by N. Wiener and J. P. Schadé (review)
  2. D. Agin
  3. p. 252
  4. DOI: https://doi.org/10.1353/pbm.1964.0028
  5. restricted access
  1. Letters to and from the Editor
  2. Christine Stevens, I. S. Ravdin, Dwight J. Ingle
  3. pp. 253-261
  4. DOI: https://doi.org/10.1353/pbm.1964.0034
  5. restricted access