1. Structural hybridity inPaeonia californica andP. Brownii

   • G. Ledyard Stebbins
   • Sydney Ellerton

   OriginalPaper Pages: 1 - 36

2. An analysis of three wild populations ofDrosophila subobscura

   • Cecil Gordon
   • Helen Spurway
   • P. A. R. Street

   OriginalPaper Pages: 37 - 90

3. The genetic structure ofTulipa

   • Margaret Upcott
   • James Philp

   OriginalPaper Pages: 91 - 123

4. The cytology of the Duke cherries and their derivatives

   • K. Hrubý

   OriginalPaper Pages: 125 - 131

5. The genetics of blackarm resistance

   • R. L. Knight
   • T. W. Clouston

   OriginalPaper Pages: 133 - 159

6. The genetics ofTropaeolum majus. II

   • Eileen Sutton

   OriginalPaper Pages: 161 - 176

7. Sterility mutations inDrosophila melanogaster

   • S. S. Prabhu

   OriginalPaper Pages: 177 - 191

8. The daughters and sisters of haemophilics

   • J. B. S. Haldane
   • U. Philip

   OriginalPaper Pages: 193 - 200

9. Further studies on the effect of temperature on the manifestation of the short-wing gene inDrosophila melanogaster

   • Reidar Eker

   OriginalPaper Pages: 201 - 227

10. The genetics of leaf shape in diploid cottons and the theory of gene interaction

    • R. A. Silow

    OriginalPaper Pages: 229 - 276

11. The genetics and taxonomic distribution of some specific lint quantity genes in Asiatic cottons

    • R. A. Silow

    OriginalPaper Pages: 277 - 298

12. Studies onStreptocarpus

    • W. J. C. Lawrence
    • R. Scott-Moncrieff
    • V. C. Sturgess

    OriginalPaper Pages: 299 - 306

13. The origin and geographical distribution ofTriticum sphaerococcum perc. and its cytogenetical behaviour in crosses withT. vulgare VILL

    • Sydney Ellerton

    OriginalPaper Pages: 307 - 324

14. The size of seeds in diploid and autotetraploidBrassica oleracea L.

    • H. W. Howard

    OriginalPaper Pages: 325 - 340

15. Rex: A dominant autosomal monogenic coat texture character in the mouse

    • F. A. E. Crew
    • Ch. Auerbach

    OriginalPaper Pages: 341 - 344

16. A position effect inOenothera

    • D. G. Catcheside

    OriginalPaper Pages: 345 - 352

17. A note on the determination of sex of plantain flowers

    • A. C. Joshi

    OriginalPaper Pages: 353 - 356

18. Genetics of cyanogenesis in white clover (Trifolium repens)

    • R. D. Williams

    OriginalPaper Pages: 357 - 365

19. Genetical studies in cultivated raspberries

    • D. Lewis

    OriginalPaper Pages: 367 - 379