A. D. Darbishire 169 



H,,. ? 2c X ^ :5c. 



7 Young. 2 alhinos, 2c, 2c, 2c, 2c (?ü), 4e (?y). 



H.,,. ? 2c X ^ 2c. 



() Young. Albino. Albino (tv), 2c {^u), Sc {tu), 2e, 2/. 



lU % icx^ 3c. 



5 Young. Albino, -e, 2c, 4e, 4d 



That is to say there are .S7 young froiii 14 hybrid parents of degrccs of 

 whiteness incliuled in Group.s 2 and 3. The young may be classificd according to 

 degrees of whiteness and according to their colour. 



Degrecs of Wliitenesa Nature of Colour 



Albinos 9 Albinos 9 



Oroup 1 Glass a 4 



Qroup 2 12 Glass b G 



Group '?> 11 Glass c 9 



Group 4 5 Glass d 1 



Glass e 5 



37 



Glass f 3 



37 



B. Offspring of Hybrids and Albinos. 



The following is a record of young produced by crossing a hybrid vvith an 

 albino. 



Hi. ? albino x (/" 3c. 



4 Young. 5c, 5c, .5c, 5c. 



i/o. $ albino x J' 3c. 



9 Young. 5 albinos and 4e, id, -id, 5d. 



Hf. $ albino x ^ 5c. 



5 Young. 2 albinos and 5c, 5c/, Qe. 



H^. % albino x ^ 5c. 



5 Young. 1 albino and Qd, Qd, Qd, 6c. 



H(,. % albino x ^ 5c. 



4 Young. 2 albinos and 6d, 6d. 



Hn. ? albino x / M. 



6 Young. 5 albinos and Ge. 



H,„. ? 2c X </ albino. 



5 Young. 2 albinos and 8c, 6e, 6e. 



ZTij. $ 5c X j/ albino. 



3 Young. 1 albino and 5d, Ge. 

 Biometiika ii 22 



