1. A new interpretation of meiotic prophase in lycopersicon esculentum (tomato)

   • Peter B. Moens

   OriginalPaper Pages: 231 - 242

2. Heterochromatin and non-homologous chromosome associations in Coix aquatica

   • A. K. Koul

   OriginalPaper Pages: 243 - 245

3. Chromosome numbers in some Indian species of Nitella

   • Y. S. R. K. Sarma
   • M. Khan

   OriginalPaper Pages: 246 - 247

4. Chromosomes and the nature and origin of Anthoxanthum odoratum L.

   • Keith Jones

   OriginalPaper Pages: 248 - 274

5. The question of polyploidy in the Salmonidae

   • H. Rees

   OriginalPaper Pages: 275 - 279

6. Chromosomal uniformity in the avian subclass Carinatae

   • Susumu Ohno
   • Christina Stenius
   • Maria Luiza Beçak

   OriginalPaper Pages: 280 - 288

7. Chromosomes and evolution of the ground squirrel, Spermophilus richardsonii

   • Charles F. Nadler

   OriginalPaper Pages: 289 - 299

8. Corrigendum

   • K. Benirschke

   Erratum Pages: 300 - 300

9. The mouse karyotype in somatic cells cultured in vitro

   • Marco Crippa

   OriginalPaper Pages: 301 - 311

10. Cytological and autoradiographic studies in Sciara coprophila salivary gland chromosomes

    • Natalia Gabrusewycz-Garcia

    OriginalPaper Pages: 312 - 344