256 
THE ART OF REARING 
1 . The eggs in the stove-room were at first in 
a temperature of 64° to 66°, which may have 
been gradually raised about two degrees every 
day, until the complete hatching be accomplished. 
(Chap. 1Y. § 4.) 
2. If the insects were kept in an even tempera- 
ture of about 75°. 
3. If, in removing the silk-worms, they have 
been protected from cold air and draughts of 
wind, particularly from dry cold winds. 
3. Of the Diseases incident to the Silk-worm in 
its four first Ages, arising from ill Manage- 
ment. 
In this paragraph we must not admit the exist- 
ence of the seeds of the diseases proceeding from 
the causes specified in the preceding pages, 
because, in the contrary case, it must be evident, 
that whatever might be the care bestowed on the 
rearing of the silk-worm during the course of 
its life, we should always find disorder appearing, 
which would extend through the different ages of 
the silk-worms, and would destroy them, without 
it being in the power of the cultivator to remedy 
the evil. 
If we suppose that all rules prescribed have 
been attended to, the worms can never experience 
disease. 
