CONTENTS. 



A. Statement of Problem 5 



B. Material and Methods 8 



C. Results 8 



Series I. The Inheritance of Crest 8 



Statement of Problem 8 



Material 8 



Results 8 



1. Recessiveness of Plain Head 9 



2. The Detection of Homozygous Crests and the Gametic Com- 



position of Heterozygotes 9 



3. Baldness 11 



Series H. The Inheritance of Plumage-Color 13 



Statement of Problem 13 



Results 14 



1. On Inheritance of Green and Yellow Plumage-Color 14 



a. Green x Green 15 



b. Yellow X Yellow 15 



c. Yellow X Green . 15 



2. Inheritance of Ticking 17 



3. Inheritance of Yellow x Lizard Coloration 19 



4. Inheritance of Cinnamon (Female) x Green (Male) 19 



Series III. Inheritance of Characteristics in Hybrids between the European 



Goldfinch and the Yellow Canary 19 



Series IV. Hybrids between the Yellow Canary and Other Species ... 22 



D. Summary and Conclusion 23 



E. Table of Canary Matings 24-25 



F. Literature Cited 26 



3 



