1. The relationship between group composition and drug action in mice

   • C. W. M. Wilson
   • Rea Mapes

   Original Investigations Pages: 239 - 254

2. Effect of atropine on learning, extinction, retention and retrieval in rats

   • O. Burešová
   • J. Bureš
   • T. Weiss

   Original Investigations Pages: 255 - 263

3. Effects of benactyzine and adiphenine on instrumental avoidance conditioning in a shuttle-box

   • Giorgio Bignami

   Original Investigations Pages: 264 - 279

4. The subjective experience of time during lysergic acid diethylamide (LSD-25) intoxication

   • J. C. Kenna
   • G. Sedman

   Original Investigations Pages: 280 - 288

5. Some effects of muscarinic cholinergic blocking drugs on behavior and the electrocorticogram

   • Barton Meyers
   • Kelyn H. Roberts
   • Edward F. Domino

   Original Investigations Pages: 289 - 300

6. Treatment of drug-induced parkinsonism: A comparison between UK-738, orphenadrine, and a placebo in a double blind study

   • Knud Jensen
   • Amdi Amdisen

   Clinical Reports Pages: 301 - 305

7. The clinical evaluation of a new butyrophenone (WY-3457)

   • G. M. Simpson
   • Tibor Farkas
   • J. C. Saunders

   Clinical Reports Pages: 306 - 312

8. Über eine neue Methode: Der Arterien-Katheterismus des Gehirns

   • Giuliano Dolce

   Kurze Originalmitteilungen Pages: 313 - 316