1. The social group of wild chimpanzees in the Mahali Mountains

   • Toshisada Nishida

   OriginalPaper Pages: 167 - 224

2. Social organization of chimpanzees in the Budongo Forest, Uganda

   • Yukimaru Sugiyama

   OriginalPaper Pages: 225 - 258

3. The expressive movements of the bonnet macaque

   • Hafeezur Rahaman
   • M. D. Parthasarathy

   OriginalPaper Pages: 259 - 272

4. Vocalizatons of chimpanzees in non-caged captivity

   • Mark L. Fleischman

   OriginalPaper Pages: 273 - 282

5. Sexual behavior in a captive group of pigtailed monkeys (Macaca nemestrina)

   • Kisaburo Tokuda
   • Ronald C. Simons
   • Gordon D. Jensen

   OriginalPaper Pages: 283 - 294

6. The comparative gross anatomy of the arteria cerebri media in the green monkey (Cercopithecus aethiops) and olive monkey (Papio anubis)

   • Joe A. Bollert
   • Daris R. Swindler

   OriginalPaper Pages: 295 - 306

7. The Mm. levatores costarum longi in some catarrhine monkeys

   • Jun-Ichiro Satoh
   • Ting-Choung Shu

   OriginalPaper Pages: 307 - 316

8. Postscript by the Editor

   EditorialNotes Pages: 317 - 318