1. Hybrid sterility and incompatibility

   • A. E. Watkins

   OriginalPaper Pages: 125 - 162

2. Step-Allelomorphism inDrosophila melanogaster. The allelomorphs achaete²-scute¹⁰, achaete¹-scute¹¹, and achaete³-scute¹³

   • N. P. Dubinin

   OriginalPaper Pages: 163 - 181

3. Inheritance of colour inBrassica Napus

   • V. McM. Davey

   OriginalPaper Pages: 183 - 190

4. Note on a sex-linked down character in ducks

   • R. C. Punnett

   OriginalPaper Pages: 191 - 194

5. Genetics of the primroseP. Acaulis

   • B. H. Buxton

   OriginalPaper Pages: 195 - 205

6. A note on the anthocyanin pigments of the primroseP. Acaulis

   • R. Scott-Moncrieff

   OriginalPaper Pages: 206 - 210

7. The genetic analysis of familial traits

   • Lancelot Hogben

   OriginalPaper Pages: 211 - 240

8. A cytological study of the genusSorghum Pers.

   • C. Leonard Huskins
   • Stanley G. Smith

   OriginalPaper Pages: 241 - 249

9. A method for investigating recessive characters in man

   • J. B. S. Haldane

   OriginalPaper Pages: 251 - 255

10. A sex-linked recessive “lethal” inDrosophila obscura

    • F. A. E. Crew
    • Rowena Lamy

    OriginalPaper Pages: 257 - 259