C. B. DAVENPORT 



TABLE 1 



cfcf 



9 9 



REMARKS 



Gametes 

 Fi 



grossul. 

 G- 



Gg 



X 



lacticol. 



. 



G 



Both cT and 9 hybrids 

 are grossul. 



Fi (grossul. X lacticol.) X Fi (grossul. X lacticol.) 



Gametes 



F. 



G 



g 

 (GG 



iGg 



All cfcf grossul.; 50 

 percent? 9 grossul. 

 50 per cent 9 9 lac- 

 ticol. 



Fi (grossul. X lacticol.) X lacticol. 9 



^'G 



Gametes 



Offspring 



Gg 



g 



50 per cent cf cf and 

 50 per cent 99 

 grossul.; the others 

 lacticol. 



lacticol. cf 



Gametes 

 Offspring 



/Gg 

 IGg 



X F (grossul. X lacticol.) 9 

 G 



All cfcT grossul. all 

 9 9 lacticol. 



2, The case of the cinnamon canary was worked out by Dur- 

 ham and Marryat ('09) confirming and greatly extending the 

 fancier's knowledge of breeding in this race. As is well known, 

 we have in the cinnamon race a dilute black pigment in the 

 plumage and in the iris giving the juvenile 'pink' eye. The 

 green and the yellow canaries have, on the other hand, a black 

 iris, which we may designate by B. The pigment condition in 

 the cinnamon is represented by b. The results to be expected 

 from various matings are given in table 2. The actual results 

 obtained from the given matings agree closely with expectation. 



