344 BE. J. ALLEN AND E. W. SEXTON. 
Number of young. 
Black. Black-eyed. Red-eyed. 
B+R+AxR Experiment 180 165 
Theory 172 172 
B+R+AxRN Experiment 18 16 
Theory 17 17 
A+B+RxR Experiment 87 72 
Theory ig 79 
A+B+RxRN Experiment 31 ok 
Theory 31 31 Total: Wiss 
Black-eyed. Albino-eyed. 
B-Ax<A--R Experiment 103 106 
Theory 104 104 
B+AxA+B+R Experiment 5 16 
Theory 10 10 
B+AxA-+(?) Experiment 24 25 
Theory 24 25 
A+BxB+R+A Experiment 8 6 
Theory 7 7 
A+BxR+A Experiment 76 al 
; Theory 76 77 Total, 446. 
Red. Red-eyed. Albino-eyed. 
R--AxA+R Experiment 601 5D4. 
Theory 517 577 Total, 1155. 
4. Matings giving normal-eyed offspring of three colours in the proportion 
Dero eek. Number of young. 
Black-eyed. Red-eyed. Albino-eyed. 
B+R+AxB+R+A Experiment 542 189 241 
Theory DAT 182 243 
5. Matings giving normal-eyed offspring of three colours in the proportion 
Ov: Lex. 
B+R+AxA+B+R Experiment 11 4 16 
Theory 12 4 15 
6. Matings giving normal-eyed offspring of three colours in the proportion 
1 alee 
ASB] Rhone’ Experiment 84 g? 147 
Theory 81 81 162 
B+R+AxA+R Experiment 31 8 34* 
Theory 18 18 26 
* These totals are made up as follows :— Black. Reds. alpine 
WieA- 1d. '¢ x VI B.20.79 : : = eel 3 20 
ViIC2:k. g x VIC. 2.6 : : eagle 1 3 
WAC. 33e92% VILB.2: 6 6) eee eR eee Ae sie 
31 8 34 
It will be seen that two of these families gave unexpected numbers. 
