122 
THE ART OF REARING 
worms are not immediately to be put into this 
small laboratory again. 
In the third age. about 300 pounds of picked 
leaves have been put upon the hurdles, and the 
litter removed is of about 93 pounds weight, con- 
sequently 207 pounds of substance have been con- 
sumed by the silk-worms, and in evaporation. 
The excrements of the silk-worm of this age 
weighed about, 18 pounds. 
Second Day of the Fourth Age. 
(Seventeenth of the Rearing- of the Silk-worm.) 
For this day will be wanted 165 pounds of sort- 
ed leaves, slightly cut up. 
The two first meals should be the lightest, and 
the last the most copious. 
The worms grow fast, and their skin continues 
to whiten. 
In giving the meals, the space occupied by the 
worms should be widened. 
Third Day of the Fourth Age. 
(Eighteenth of the Rearing of the Silk-worm.) 
For this day will be needed 225 pounds of sort- 
ed leaves, a little cut. 
The two first meals ought to be the most plenti- 
ful, the last meal to be of about 75 pounds. 
