On the variation ofBombus lapidarius L. and its cuckoo,Psithyrus rupestris Fabr., with notes on mimetic similarity W. F. Reinig OriginalPaper Pages: 321 - 356
The short-wing gene inDrosophila melanogaster, and the effect of temperature on its manifestation Reidar Eker OriginalPaper Pages: 357 - 368
On the selective consequences of East’s (1927) theory of heterostylism inLythrum R. A. Fisher OriginalPaper Pages: 369 - 382
A mosaic (dark-eyed intense—pink-eyed dilute) coat colour of the house mouse Horace W. Feldman OriginalPaper Pages: 383 - 388
Comparative intrapair correlations of fraternal twins and siblings S. G. LevitG. V. Soboleva OriginalPaper Pages: 389 - 396
On the incomplete dominance of the normal allelomorphs of white inDrosophila H. J. Muller OriginalPaper Pages: 407 - 414
The genetics of grasshoppers:Chorthippus parallelus F. W. SansomeL. La Cour OriginalPaper Pages: 415 - 422
A new phenotypic effect of theY-chromosome inDrosophila melanogaster N. P. DubininM. A. Heptner OriginalPaper Pages: 423 - 446