1. Studien an wilden bastarden zwischen verschiedenen linneonten

   • J. P. Lotsy

   OriginalPaper Pages: 177 - 233

2. Errata

   Erratum Pages: 233 - 234

3. Ueber primelbastarde von arosa

   • Med W. Knoll

   OriginalPaper Pages: 235 - 240

4. On the origin of red-leaved forms in a cross of nothofagus fusca × cliffortioides

   • J. P. Lotsy

   OriginalPaper Pages: 241 - 252

5. The genotypic character of some aberrant forms of lamium

   • M. J. Sirks

   OriginalPaper Pages: 253 - 272

6. Evidence as to the cause of so-called mutations in drosophila

   • E. C. Jeffrey
   • G. C. Hicks

   OriginalPaper Pages: 273 - 286

7. Illustrations of wild hybrids in the New Zealand flora

   • H. H. Allan

   OriginalPaper Pages: 287 - 292

8. The cytology of the sugarcane

   • G. Bremer

   OriginalPaper Pages: 293 - 322

9. Pisum crosses—A correction

   • Aslaug Sverdrup

   Erratum Pages: 323 - 324

10. Einiges Ueber die Corriedale-Schafe Neu Seelands

    • J. P. Lotsy

    OriginalPaper Pages: 325 - 333

11. Boekbespreking

    • Lotsy
    • H. N. Kooiman

    BookReview Pages: 334 - 336