1. The estimation of the frequency of recombinations

   • D. J. Finney

   OriginalPaper Pages: 159 - 176

2. The inheritance of resistance to three races ofTilletia foetida and two races ofT. Caries in a cross between white federation 38 and selection 1403 wheats

   • A. T. Pugsley

   OriginalPaper Pages: 177 - 182

3. Racial divergence in fin ray variation patterns inGasterosteus aculeatus

   • M. J. Heuts

   OriginalPaper Pages: 183 - 191

4. The possible influence of major mutations on general or directional mutability of the genotype

   • Rowena Lamy

   OriginalPaper Pages: 192 - 208

5. Chiasma interference in diploid, tetraploid and interchange spermatocytes of the earwig,Forficula auricularia

   • H. G. Callan

   OriginalPaper Pages: 209 - 213

6. Gene frequencies in London's cats

   • A. G. Searle

   OriginalPaper Pages: 214 - 220

7. Meiosis in seeded diploids ofMusa

   • N. W. Simmonds
   • K. S. Dodds

   OriginalPaper Pages: 221 - 225

8. The estimation of mutation rates from incompletely tested gametes, and the detection of mutations in mammals

   • D. S. Falconer

   OriginalPaper Pages: 226 - 234

9. Potato grafting experiments

   • H. W. Howard

   OriginalPaper Pages: 235 - 240

10. A preliminary pachytene chromosome map of the house mouse

    • B. M. Slizynski

    OriginalPaper Pages: 242 - 245

11. The mechanism of chromosome pairing during meiosis in maleApolipthisa subincana (mycetophilidae, diptera)

    • Onsy G. Fahmy

    OriginalPaper Pages: 246 - 263

12. The distribution of the numbers of mutants in bacterial populations

    • D. E. Lea
    • C. A. Coulson

    OriginalPaper Pages: 264 - 285

13. Albinism inRana temporaria

    • W. A. Smallcombe

    OriginalPaper Pages: 286 - 290

14. Variation in the number of stamens in the common chickweed

    • Gordon Haskell

    OriginalPaper Pages: 291 - 301