1. Sorting and blending of “unit characters” in the zygote of Oenothera with twin and triplet hybrids in the first generation

   • Geo F. Atkinson

   Abhandlungen Pages: 193 - 238

2. Gute, harte und leere Samen von Oenothera

   • Hugo de Vries

   Abhandlungen Pages: 239 - 292

3. Digitalisstudien I

   • Gertraud Haase-Bessell

   Abhandlungen Pages: 293 - 314

4. Referate

   • Baur
   • C. Fruwirth

   BookReview Pages: 315 - 316