1. Notes on the history of bulb breeding in the Netherlands

   • J. Doorenbos

   OriginalPaper Pages: 1 - 18

2. A tentative breeding method for Robusta and other allogamous coffee species

   • F. P. Ferwerda

   OriginalPaper Pages: 12 - 19

3. Taproot-problems in the breeding of root vegetables

   • O. Banga

   OriginalPaper Pages: 20 - 27

4. Observations on flower induction with potatoes

   OriginalPaper Pages: 28 - 34

5. The creation of tetraploid beets

   • D. Kloen
   • G. J. Speckmann

   OriginalPaper Pages: 35 - 42

6. Breeding for stalk-rot resistance in maize

   ReviewPaper Pages: 43 - 48

7. Breeding of tetraploid rye in the Netherlands

   OriginalPaper Pages: 49 - 63

8. Het gebruik van nomogrammen ter vereenvoudiging van berekeningen

   • J. W. Sieben

   OriginalPaper Pages: 64 - 67

9. Indrukken tijdens een reis door de Verenigde Staten ter bestudering van de maisveredeling en verwante onderwerpen

   • F. P. Ferwerda

   OriginalPaper Pages: 68 - 73

10. Reviews of books

    BookReview Pages: 74 - 75

11. Reviews of Dutch articles

    BookReview Pages: 76 - 78

12. News items

    Announcement Pages: 78 - 79

13. Notes

    Announcement Pages: 80 - 80