224 



Coat-Colour in Rabbits 



mated several times with the same agouti j/* and, as Table I shews, the 

 results are in fair accordance with expectation : 



Fi $ 10 was also crossed with the Himalayan ^ and gave 2 agouti, 

 1 black, and 5 Himalayans, expectation here being 2 agouti, 2 black, 

 and 4 Himalayans. 



The F2 generation from the F^ blacks. 



Though the F^ blacks originated from two different sorts of cross, 

 viz. from yellow x Himalayan as well as from tortoise x Himalayan, 

 they should nevertheless all behave similarly. For there is no reason 

 to suppose that there is any difference between a tortoise gamete 



TABLE IL 



Male 35 

 Black F^ 



Black Fi 



? ? ex 



Tortoise x Himalayan 



No. of ^ 



Female Blk. 



(22 8 



23 — 



24 — 



25 — 



26 — 

 45 — 

 47 — 

 53 — 

 56 — 



106 — 



Tort. Him. 

 4 2 



Male 20 Male 74 Male 116 



Black f, Tortoise Himalayan 



Blk. Tort. Him. Blk. Tort. Blk. Him. 



— — 6 



4 4 



3 — 



4 5 

 2 2 





Black Fi 

 ? 9 ex 

 Yellow X Himalayan 



17 

 37 

 39 

 43 

 V102 



2 — 



Totals 



Expectation 



10 



16 



26 : 8 : 12 

 27-7 : 6-7 : 12-<5 



19 25 



22 22 



10 10 



10 10 



