lO 
Y. TAN AK. A. 
NY Ny nY ny 
'S" 1 : 3 : 3 : J 
? I : I 
whence the apparently normal /A't^'otic series, 9:3:3:1, may result. 
Lastly w e cunie to the discussion (jf a family, No. 420-3'! 3, reared 
durin<4' the summer 191 3. The fii^ures in this family seem to tempt one 
to tile supposition that the 4:1:1:4 couplin«^ exists in both parents. 
Presumably, ho\ve\er, this supposition is not correct, but here the male 
and fe:ii:ile gamjtic scries would have bjen distinct as it was the case 
with the striped-yellow and moricaud-yellow couplin<^s. Thus if wc 
assume the c^ametic series as 
NY Ny nY ny 
2:1:1:2 
$ I 
we may expect the following numbers : 
Observed 
Kxpected 
Conclusive results are to be obtained, however, only from the crosses 
NnYy ^ x nnyy 'q' ^mcl the reciprocal, where NnYy has been produced 
by union of NY and ny. 
P. .S. In my previous paper (191 3, 1. c., p. 122 and Table V), I have 
described a family (H. ly'ii) in which apparently complete repulsion 
occurred between S and Y in spite of the family has been derived from 
the cross Aojikit (normal white) ^ x striped yellow "q. Whether there 
may exist, in certain occasion, a complete reduplication in nicxlc, or 
whether the above result is due to any mistake by which sex-signs have 
been reversed, is at present uncertain. No similar case has as yet been 
found in other families. 
Normal 
Normal 
Plain 
Plain 
Total 
yellow 
white 
yellow 
white 
261 
-\ o 
29 
85 
408 
34 
34 
68 
408 
(8) 
(0 
(0 
i?) 
