YOSHIMARO TANAKA 
'33 
equal numbers. 
A 43. '15 
A 43^15 
Totals 
Ratio 
Plain 
55 * 
107 * 
Pale-quail 
78* 
96* 
Totals 
203 
162 
1 
'74 
1 
Thus plain (P) is evidently a simple dominant to pale-quail (p). Pale-quail 
also behaves as a simple recessive to quail, as the following data show : 
Quail Pale-quail Totals 
A 424' 1 5 (pale- 153 
quail 9 x F^J) 
A 425'! 5 (F, ]) $ x 264 
pale-quail J ) 
134 
244 
287 
508 
Totals 
Ratio 
417 
1 
378 
1 
795 
Consequently I represent quail by Q, and pale-quail by q. 
Now we come to the consideration of the behaviour of plain (Pq) to quail 
(pQ). When these two dominants were brought together by crossing, the 
resulting pattern was neither plain nor quail, but the normal, which split, in 
F a , into four forms, i. e. normal, plain, quail and pale-quail in the ratio 
9_ : ~3 : 3 : 1 - 2) F;j families from such crosses are given below: 
Normal Plain Quail Pale-quail Totals 
C 1&14 
C 29-1 '14 
C 29-2' 14 
C 29-3' 1 4 
C 29-4' 1 4 
Totals 
Expected 
Ratio 
1 19 
281 
260 
305 
231 
49 
127 
103 
114 
71 
34 
102 
95 
94 
83 
20 
35 
25 
35 
37 
545 
483 
548 
422 
1 196 
1249 
9 
464 
416 
408 
416 
152 
139 
i 
2220 
2220 
1) Ex quail x pale-quail. 
2) Toyama ('912 b) gave a brief account of this phenomenon, but the relations between plain 
or quail factor and striped or moricaud were not noted by him. 
