SECTION IV. 
CHRYSALIS PERIOD. 
The silkworm requires four or five days to 
complete the formation of its cocoon ; most cultiva- 
tors, however, allow seven or eight days to elapse 
before gathering them. 
When the cocoons are gathered, and the floss 
silk removed, they are divided into nine qualities : 
First — Good cocoons. They seldom attain to 
any great size, but they are compact and spotless. 
Second — Cocalons. These are larger than good 
cocoons, but contain about the same amount of 
silk, being less compact. 
Third — Pointed cocoons. Cocoons of this 
kind are very difficult to reel, and often can not be 
reeled at all. They have one end rising in a point, 
and the silk, when it reaches the pointed end, will 
very likely break. 
Fourth. — Double cocoons or Dupions. The 
fibres are interlaced. They are formed by two or 
more worms spinning in the same cone at the 
same time. They can very seldom be reeled. 
Fifth — Sufflons. These are very imperfect, so 
much so as to be transparent. They are usually 
not reeled, as they contain very little silk. 
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