1. Our present knowledge of the chemistry of the Mendelian factors for flower-colour

   • M. Wheldale

   OriginalPaper Pages: 109 - 129

2. A commentary on the genetics of the ciliate protozoa

   • Clifford Dobell

   OriginalPaper Pages: 131 - 190

3. A note on Wheldale and Bassett’s paper “on a supposed synthesis of anthocyanin 1”

   • Arthur Ernest Everest

   OriginalPaper Pages: 191 - 192