SILK-WORMS. 
75 
Of good eggs, there does not remain at most one 
hundredth part that is not hatched in the course of 
the three first days. This hundredth part conti- 
nues to hatch in time, but should not be calculat- 
ed upon. 
These observations may be useful to those who 
like to know every branch of the art of rearing 
silk-worms ; they are at least curious, and as fai* 
as I know, they have the merit of appearing new. 
CHAPTER VI. 
OF THE REARING OF SILK-WORMS IN THEIR FOUR 
FIRST STAGES. 
Let us now' touch upon the subjects more parti- 
cularly relating to the silk-worm. 
In the preceding Chapter, it has been stated, 
that the space suitable to the number of silk- 
worms proceeding from one ounce of eggs, should 
be, in the first age, that is to say, until the first 
moulting, 7 feet, 4 inches, square. 
Of about 14 feet, 8 inches, until the second 
moulting; and of 34 feet, 10 inches, till the third 
moulting. The space required until the fourth 
moulting, should be of 82 feet, 6 inches, square. 
Those who have the means of extending these 
allotted spaces, may do so by some feet, because 
