1. Introduction

   • Peter W. Lucas

   EditorialNotes Pages: 201 - 205

2. Physical and chemical properties of fruit and seeds eaten byPithecia andChiropotes in Surinam and Venezuela

   • Warren G. Kinzey
   • Marilyn A. Norconk

   OriginalPaper Pages: 207 - 227

3. Soil-eating byAlouatta andAteles

   • Kosei Izawa

   OriginalPaper Pages: 229 - 242

4. The value of figs to chimpanzees

   • R. W. Wrangham
   • N. L. Conklin
   • A. P. Clark

   OriginalPaper Pages: 243 - 256

5. Modeling dietary selectivity by Bornean orangutans: Evidence for integration of multiple criteria in fruit selection

   • Mark Leighton

   OriginalPaper Pages: 257 - 313

6. Shell strength and primate seed predation of nontoxic species in eastern and southern Africa

   • Charles R. Peters

   OriginalPaper Pages: 315 - 344

7. Physiological activities and the active constituents of potentially medicinal plants used by wild chimpanzees of the Mahale mountains, Tanzania

   • Koichi Koshimizu
   • Hajime Ohigashi
   • Hiroyuki Takasaki

   OriginalPaper Pages: 345 - 356