xii MENDELISM 



FIG. PAGE 



9. Sections of Primula Flowers . . . . 51 



10. Small- and Large-Eyed Primulas . . . 52 



11. Diagram illustrating Reversion in Pigeons . . 61 



12. PrijHula sinensis Y. Primula stellaia . . . 64 



13. Diagram illustrating Cross between Dominant and 



Recessive White Fowls ..... 68 



14. Bearded and Beardless Wheat .... 69 



15. Feet of Fowls ... .... 71 



16. Scheme of Inheritance of Horns in Sheep . . 72 



1 7. The " Cretin " Sweet-Pea .... 80 



18. Scheme of Cross between Silver Cock and Gold Hen 85 



19. Scheme of Cross between Silky Hen and Brown 



Leghorn Cock ...... 89 



20. Scheme of Cross between Brown Leghorn Hen 



and Silky Cock ...... 90 



2 1. Scheme of Cross between F^ Birds and Brown 



Leghorn 91 



22. Scheme to illustrate Nature of F^ Generation from 



Silky Hen and Brown Leghorn Cock . . 92 



23. Scheme to illustrate Nature of F^ Generation from 



Brown Leghorn Hen and Silky Cock . . 93 



24. Diagram illustrating Nature of Offspring from 



Brown Leghorn Hen x F^ Cock ... 94 



25. Scheme to illustrate Heterozygous Nature of Pure 



Brown Leghorn Hen 96 



26. Abraxas grossulariata 2in^\?iX. lacticolor . . 97 



27. Scheme of Cross between White - Eyed Male 



Drosophila and Red-Eyed Female ... 99 



