MENDELIAN FACTORS IN THE SILKWORM. 
107 
zebra yellow 
(Papillons 
noirs) W 
ZiY 
Ziy 
1 ziYziY 
1 ziyziY 
1 ziYzIY 
1 ziyziY 
2 plain yelloi 
2 plain white 
1897 
F2 zebra 
yellow <j>, 'J' 
ZiY 
ziY 
1 ZiYZiY 
2 ZiYziY 
3 zebra yellow 
1 plain yellow 
1396 + 1 
MF 
F zebra 
white £ , 'S' 
ZIY 
ZiY 1 F 3 
zIY 
ziY 
1 ZIYZIY 
2 ZIYZiY 
2 ZIYzIY 
4 ZIYziY 
265.0 
1 ZiYZiY 
2 ZiYziY 
3 zebra yellow 
1 zIYzIY 
2 zIYziY 
3 plain white 
1 ziYziY 1 plain yellow 
471 471.0 
Fi! plain 
yellow •J' 
ziYziY plain yellow 
1 ziYziY I 1 plain yellow 
Fz plain 
white 'S' 
ziYzIY 
ziY 
zIY 
2 ziYzIY 
1 zIYzIY 
3 plain white 
! zebra white? 
442+6| 442 
?) These irregularities evidently are to 
himself recognizes it in the following words : 
sur des cartons trop rapprochds, et il a pu se 
be considered as accidental, as Coutagne 
‘ ces 4 lots ont dtd places au ddbut de l’dlevage, 
faire quelque mdlanges”. 
