1. The genetics and cytology of Dahlia species

   • W. J. C. Lawrence

   OriginalPaper Pages: 125 - 159

2. Variegation and albinism inVicia Faba

   • C. D. Darlington

   OriginalPaper Pages: 161 - 168

3. Studies inRanunculus

   • E. M. Marsden-Jones
   • W. B. Turrill

   OriginalPaper Pages: 169 - 181

4. Studies inRanunculus

   • R. O. Whyte

   OriginalPaper Pages: 183 - 191

5. Pollen germination in stocks and the possibility of applying a lethal factor hypothesis to the interpretation of their breeding

   • C. H. Waddington

   OriginalPaper Pages: 193 - 206

6. Chromosome behaviour and structural hybridity in theTradescantiae

   • C. D. Darlington

   OriginalPaper Pages: 207 - 286

7. On the influence of genesy, l _i , andN _i on the crossing-over close to their loci in the sex-chromosome ofDrosophila melanogaster

   • A. S. Serebrovsky
   • O. A. Ivanova
   • Leo Ferry

   OriginalPaper Pages: 287 - 314