SILK-WORMS. 
79 
sheets of paper, which includes at least two days) 
(Chap. V. § 2.) six pounds of leaves, well sorted, 
and chopped very small. 
2d. In the second age, they consume 13 pounds 
of sorted clean leaves, chopped rather more 
coarsely than the food for the first age. 
3d. In the third age, they consume 60 pounds 
well sorted, and less chopped. 
4. In the fourth age, 180 pounds well sorted, 
and still less chopped than that of the third age. 
Some circumstances may modify the proportions 
specified above, but these variations are not impor- 
tant, supposing the cultivator to act with consi- 
derate intelligence, and well to time the hatch- 
ing of his silk-worms with the springing of the 
young leaves, and then their growth with the pro- 
gress of the leaf through the other stages of ex- 
istence. 
If the eggs be hatched before this favourable 
time, they must be thrown away, and others should 
be hatched, particularly if the unexpected bad- 
ness of the season stops or delays the vegetation 
of the mulberry, as it often has happened, and as 
cultivators adopt this method, they must put the eggs to 
hatch ten days later than they would require to be laid to 
hatch in the ordinary way. And they must calculate the dura- 
tion of the different ages of the worm, and so manage that 
the completion of the rearing, or fourth age, should fall into 
the time in which the leaf has attained its full growth.’’ — 
The Translator. 
