1. The effects of some phenothiazine derivatives on the discrimination of auditory clicks

   • Donald Shurtleff
   • David Mostofsky
   • Alberto DiMascio

   Original Investigations Pages: 153 - 165

2. Facilitation of simultaneous discrimination learning with strychnine sulphate

   • James L. McGaugh
   • Calvin W. Thomson

   Original Investigations Pages: 166 - 172

3. The effects of meprobamate, d-amphetamine, and placebo on disjunctive reaction time to taboo and nontaboo words

   • Ernest A. Peterson
   • Kenneth Haun
   • Morgan Upton

   Original Investigations Pages: 173 - 187

4. The inactivation of 5-hydroxytryptamine by blood platelets in mental deficiency with elevated serum 5-hydroxytryptamine

   • M. K. Paasonen
   • E. Kivalo

   Original Investigations Pages: 188 - 192

5. An investigation of drug induced sensory disturbances

   • F. S. Morgenstern
   • H. R. Beech
   • B. M. Davies

   Original Investigations Pages: 193 - 201

6. The influence of so-called monoamine-oxidase-inhibiting hydrazines on oral loading-tests with serotonin and 5-hydroxyindoleacetic acid

   • H. M. Van Praag
   • B. Leijnse

   Original Investigations Pages: 202 - 203

7. “Barbiturate Thresholds” in the rabbit

   • Charles Shagass
   • Robert M. Bittle
   • Marvin Schwartz

   Short Communications Pages: 204 - 211

8. Social influence on the response to drugs. III

   • Norman W. Heimstra
   • Arthur McDonald

   Short Communications Pages: 212 - 218

9. Comparison of psilocin with psilocybin, mescaline and LSD-25

   • A. B. Wolbach Jr.
   • E. J. Miner
   • Harris Isbell

   Short Communications Pages: 219 - 223

10. Evaluation of centrally acting drugs in mice with fighting behaviour induced by isolation

    • A. Scriabine
    • M. Blake

    Short Communications Pages: 224 - 226

11. The effects of certain psychotropic agents on the conditioned emotional response behavior pattern of the albino rat

    • William J. Kinnard
    • Mario D. G. Aceto
    • Joseph P. Buckley

    Short Communications Pages: 227 - 230