1. Les chromosomes polytènes de Neanura monticola Cassagnau (Collemboles)

   • Paul Cassagnau

   OriginalPaper Pages: 343 - 363

2. Genetic and environmental components of chiasma control

   • D. D. Shaw

   OriginalPaper Pages: 365 - 374

3. Heterochromatin content and chiasma distribution in the megameric chromosomes of Stethophyma gracile and S. lineatum (Orthoptera: Acrididae)

   • P. G. Fontana
   • V. R. Vickery

   OriginalPaper Pages: 375 - 395

4. Histones of spermatogenous cells in the house cricket

   • Jerome S. Kaye
   • Rachel McMaster-Kaye

   OriginalPaper Pages: 397 - 419

5. Light microscope autoradiography of ribosomal DNA amplification in Xenopus laevis

   • Adrian P. Bird

   OriginalPaper Pages: 421 - 433

6. Localization of rDNA in the chimpanzee (Pan troglodytes) chromosome complement

   • A. Henderson
   • D. Warburton
   • K. C. Atwood

   OriginalPaper Pages: 435 - 441

7. The ultrastructure of human mitotic chromosomes and interphase nuclei treated by Giemsa banding techniques

   • F. Ruzicka
   • H. G. Schwarzacher

   OriginalPaper Pages: 443 - 454