1. Untersuchungen über die Entstehung der Parthenogenese bei Solenobia triquetrella F. R. (Lepidoptera, Psychidae)

   • J. Seiler

   OriginalPaper Pages: 503 - 539

2. Chromosomal studies in some Indian Lepidoptera

   • Y. Gupta

   OriginalPaper Pages: 540 - 561

3. A cytological demonstration of arrhenotoky in three mites of the family Phytoseiidae

   • Roger I. C. Hansell
   • Margaret M. Mollison
   • William L. Putman

   OriginalPaper Pages: 562 - 567

4. Testicular chromosomes of Gallus domesticus

   • E. H. R. Ford
   • D. H. M. Woollam

   OriginalPaper Pages: 568 - 578

5. Chromosomes of syrphidae

   • J. Wallace Boyes
   • Janny M. van Brink

   OriginalPaper Pages: 579 - 590

6. Geschlechtsbestimmung bei tipuliden

   • F. -H. Ullerich
   • H. Bauer
   • R. Dietz

   OriginalPaper Pages: 591 - 605

7. Close karyological kinship between the reptilian suborder serpentes and the class aves

   • Willy Beçak
   • Maria Luiza Beçak
   • Susumu Ohno

   OriginalPaper Pages: 606 - 617

8. Size variation and orientation of the human Y chromosome

   • Ulla Gripenberg

   OriginalPaper Pages: 618 - 629

9. Cine-micrographic studies on dicentric chromosomes

   • Andrew Bajer

   OriginalPaper Pages: 630 - 651

10. The effects of inhibitors of RNA and protein synthesis on cytological development during meiosis

    • C. Lindley Kemp

    OriginalPaper Pages: 652 - 665

11. Errata

    Erratum Pages: 666 - 666

12. Register

    Legacy Pages: 667 - 686