Taxonomic and cytological studies on grasshopper hybrids Holger Klingstedt OriginalPaper Pages: 389 - 420
Genetics of chlorophyll deficiencies in red clover (Trifolium pratense L.) R. D. Williams OriginalPaper Pages: 441 - 458
Genetics of chlorophyll deficiencies in red clover (Trifolium pratense L.) R. D. Williams OriginalPaper Pages: 459 - 482
An X-ray analysis of progressive chromosome splitting Karl SaxKenneth Mather OriginalPaper Pages: 483 - 490
Sex ratios and comparative rearability of the sexes in the cross-breeding experiment (1934–7) at the Northern Breeding Station of the national poultry institute, reaseheath F. J. DudleyW. L. S. Hindhaugh OriginalPaper Pages: 491 - 497
Heritable variations inNicotiana tabacum L. induced by abnormal temperatures, and their evolutionary significance D. KostoffM. Sarana OriginalPaper Pages: 499 - 547