Studies on heterogonic growth. (IV) the bimodal cephalic horn ofXylotrupes gideon Julian S. Huxley OriginalPaper Pages: 45 - 53
On the existence of egg-laying cycles in the domestic fowl S. C. Harland OriginalPaper Pages: 55 - 62
The inheritance of black, yellow and tortoiseshell coat-colour in cats Ruth C. BamberE. Catherine Herdman OriginalPaper Pages: 87 - 97
Chromosome behaviour in male and female individuals ofVallisneria spiralis andNajas marina Ö. Winge OriginalPaper Pages: 99 - 107