SILK-WORMS. 
105 
3. Education of the Third Age. — First Day of 
the Third Age. 
(Tenth Day of the Rearing' of the Silk-worm.) 
In this first day, 15 pounds of the small shoots 
will be necessary, and equally as much of the 
picked leaves, chopped rather less than it has 
hitherto been, and at the close of the age may be 
still more coarsely chopped. 
At this age, the worms of five ounces of eggs 
should occupy nearly 174 feet square of space, 
and, consequently, the space in hurdles or tables 
must have been prepared and covered with paper 
for the silk-worms. 
The temperature of the laboratory during this 
third age should be from 71° to 73°. 
The worms that have accomplished the second 
age should not be removed from the wicker 
hurdles, until they are all nearly roused; part 
-will rouse the ninth day, part the tenth. There 
would be no harm if those first revived should 
wait 24 hours, till the rest are all roused. 
It is very easy to know the worms that are 
revived in this age ; they issue from their old skin 
with so different an aspect, that anybody may 
distinguish them without the aid of description. 
A never-failing sign that the silk-worms are 
roused, is an undulating motion they make with 
their head, when horizontally blown upon. 
