Hereditary predispositions to dizygotic twin-births in Norwegian peasant families Kristine BonnevieAslaug Sverdrup OriginalPaper Pages: 125 - 188
On the pattern of the Dutch rabbit, a discussion of the results of Punnett and Pease W. E. Castle OriginalPaper Pages: 189 - 196
Segregation: Being the Joseph Leidy memorial lecture of the University of Pennsylvania, 1922 W. Bateson OriginalPaper Pages: 201 - 235
Further observations on polydactyly and heterodactyly in fowls C. J. Bond OriginalPaper Pages: 253 - 256
On the variation and inheritance of some morphological characters inOphryoscolex purkynjei (Infusoria Oligotricha) V. DogielT. Fedorowa OriginalPaper Pages: 257 - 268