ILLUSTRATIONS 



PLATES 



PLATK PAGE 



Gregor Mendel Frontispiece 



I. Rabbits To face 60 



II. Sweet Peas . "64 



III. Sheep "78 



IV. Sweet Peas . 80 



V. Fowls "107 



VI. Butterflies "146 



FIGURES IN TEXT 



FIG. 



1. Scheme of Inheritance in simple Mendelian Case . . 21 



2. Feathers of Silky and Common Fowl . . 30 



3. Single and Double Primulas '31 



4. Fowls 1 Combs ......... 32 



5. Diagram of Inheritance of Fowls 1 Combs . 37 



6. Fowls 1 Combs 40 



7. Diagram of F 2 Generation resulting from Cross between 



two White Sweet Peas 46 



8. Diagram illustrating 9 : 3 : 4 Ratio in Mice 5 2 



9. Sections of Primulas 55 



