F. M. Durham 171 



Yellows carrying black and chocolate x chocolate : 

 Yellow Black Chocolate 



23 11 



21-4 10-7 



Yellows carrying black x chocolate : 

 YeUow 

 6 

 12 



Yellows carrying black and chocolate x black heterozygous in chocolate : 

 Yellow Black Chocolate 



25 17 18 observed 



30 15 15 calculated 



Yellows carrying black x black : 



Yellow Black 



29 24 observed 



26-5 26-5 calculated 



Yellows heterozygous in black, chocolate and albino mated together : 

 Yellow Black ChocoUte Albino 



59 27 5 30 observed 



45-3 34 11-3 30-4 calculated 



Albinos heterozygous in yellow and chocolate x chocolate heterozygous in albino : 

 Yellow Chocolate Albino 



12 5 7 observed 

 8 4 12 calculated 



In the following tables the yellows are not separated into yellows 

 and creams on account of the diflSculty stated above of distinguishing 

 between them. 



Yellows heterozygous in chocolate and silver fawn mated together : 

 Yellow and Cream Chocolate Silver fawn 



5 7 5 observed 



11-2 4-2 1-4 calculated 



Yellows heterozygous in chocolate and silver fawn x silver fawn : 

 Yellow and Cream Chocolate SUver fawn 



33 11 13 observed 



29-0 14-5 14-5 calculated 



Yellows heterozygous in chocolate and silver fawn x chocolate heterozygous in silver 

 fawn: 



Yellow Chocolate SUver fawn 



13 10 9 observed 

 16 12 4 calculated 



Yellow heterozygous in black and albino x albino heterozygous in yellow and black : 

 Ydknr Black Albino 



5 2 7 observed 



4-6 9*8 6-9 ^culated 



