SILK-WORMS. 
87 
ticularly what was lost in 1814, the immensity 
of the value of these losses would doubtless cause 
astonishment. (Chap. XY.) 
This chapter 'shall be divided into four pai’a- 
graphs : — 
1. Rearing of the hatched worms until the end 
of the first age. 
2. Rearing of the worms in the second age. 
3. Rearing of the worms in the third age. 
4. Rearing of the worms in the fourth age. 
1. Rearing of the Worms in the first Age. 
We left in the small laboratory the worms 
hatched from the eggs at 75° temperature, and 
distributed upon sheets of paper, (Chapter Y. 
§ 2.), in small squares of about ten inches a 
side. 
Let us now begin their training. Supposing it 
is required to rear five ounces, which forms a 
good-sized laboratory. The space and quantity 
of leaves must be proportioned to the stated 
number of silk-worms. Having chosen a large 
laboratory, I had in view to shew that all things 
being equal, the practical results upon a large 
scale are equally applicable to the small scale, and 
are always similar. 
First Day's Training . — When the worms pro- 
ceeding from five ounces of eggs have accom- 
plished their first casting of skin, they should 
