YOSH I MARO TAXA K A 
229 
ers were produced from 4-moulting races by feeding them with leaves sprinkled 
with coal- or volcanic ashes. 
In 19 1 2, I obtained from Mr. Yokota eggs deposited by 5-moulting 
variants, from which five batches were hatched and reared separately. Of 
the more than 1000 larvae, not a single one bred true ; similar results have 
been obtained by various authors. In fact there is, so far as I am aware, no 
constant 5-moulting strain, and the all silkworm races are 4-moulters if not 
they are 3-mou Iters. 
In the course of my experiments, I have noticed that 4-moulting fami- 
lies often yielded small numbers of 3-moulters, which did not transmit their 
moulting character to the offspring. 
A 99' 1 5 4-moult. 9 x A 288' 1 5 4-moult. £ 
A 33o'ic; 
A 326'i5 4-m. $ x S 
I 
A 727'! 5 All 4-111. 
I \ 
3-111. 4-m. 
13 272 
I 
A 74i'i 5 All 4-111. 
338 A 744' 1 5 „ „ 
A 746' 1 5 „ „ 
A 747^5 >■ » 
A 760'! 5 „ „ 
216 
229 
402 
258 
'75 
A 253'! s All 4-m. 
V><> 
A i 4 6'i5 
-m. 
l 9 
4-111. 
360 
I 
s 
A 383' '5 3-m- 
A 326'! 5 4-m. 
74 
I 
$ 
4-m. 
367 
A 732' 15 All 4-111. 377 
A 75o' I 5 „ „ 423 
