1. Editorial: B. F. Skinner and his contingencies

   • W. Horsley Gantt

   EditorialNotes Pages: 63 - 74

2. Sporadic transient atrioventricular block and slow heart rate in nervous pointer dogs

   • Joseph E. O. Newton
   • Oddist D. Murphree
   • Roscoe A. Dykman

   OriginalPaper Pages: 75 - 89

3. Conditioning of the microcirculation in the rat

   • L. Kato
   • B. Gözsy
   • Marcel Lemieux

   OriginalPaper Pages: 90 - 96

4. Pavlovian Society Meeting—1970

   Announcement Pages: 96 - 96

5. The influence of the ganglionic blocking agent ganlion on viscerovisceral and viscerocerebral reactions of the cat

   • M. Lindemann
   • R. Schilter
   • K. -D. Sinkwitz

   OriginalPaper Pages: 97 - 108

6. Psychopharmacology and conditional reflexes

   • W. Horsley Gantt

   OriginalPaper Pages: 109 - 118

7. Biological differentiation

   • Joseph Germana

   OriginalPaper Pages: 119 - 125

8. A Constant-current AC shock generator

   • David Krausman

   OriginalPaper Pages: 126 - 129

9. Information Bulletins available

   Announcement Pages: 130 - 130