1. An ethological study of pygmy chimpanzees in Wamba, Zaïre: A comparison with chimpanzees

   • Akio Mori

   OriginalPaper Pages: 255 - 278

2. Sex differences and social organization in free-ranging spider monkeys (Ateles geoffroyi)

   • Linda Marie Fedigan
   • Margaret Joan Baxter

   OriginalPaper Pages: 279 - 294

3. Preliminary report on the grouping of mandrills (Mandrillus sphinx) in Cameroon

   • Jiro Hoshino
   • Akio Mori
   • Masao Kawai

   OriginalPaper Pages: 295 - 307

4. Troop composition data of wild Japanese macaques reviewed by multivariate methods

   • Hiroyuki Takasaki
   • Kenichi Masui

   OriginalPaper Pages: 308 - 318

5. Social and environmental influences on self-aggression in monkeys

   • Arnold S. Chamove
   • James R. Anderson
   • Victoria J. Nash

   OriginalPaper Pages: 319 - 325

6. Patterns of wounding in stumptail macaques (macaca arctoides)

   • Patricia L. Whitten
   • Euclid O. Smith

   OriginalPaper Pages: 326 - 336

7. Palatal growth in baboons (Papio cynocephalus anubis)

   • Ordean J. Oyen

   OriginalPaper Pages: 337 - 351

8. The relation of long bone diaphyseal length to chronological age in immature saddle-back tamarins,Saguinus fuscicollis

   • David M. Glassman

   OriginalPaper Pages: 352 - 361

9. Microscopic anatomy of the ovary ofAlouatta caraya

   • Juan Alberto Claver
   • Irene von Lawzewitsch
   • Orestes Jorge Colillas

   OriginalPaper Pages: 362 - 371

10. A case of infanticide in a free-ranging group of rhesus monkeys (Macaca mulatta) in the jackoo forest, Simla, India

    • Andrea Camperio Ciani

    Short Communication Pages: 372 - 377

11. The birth of a lowland gorilla in captivity

    • Benjamin B. Beck

    Short Communication Pages: 378 - 383

12. Book reviews

    • Mitsuo Iwamoto
    • Hideo Nishimura
    • Katsuko Hashiba

    BookReview Pages: 384 - 389