An ounce of eggs (576 grains), is found to con- 
tain 40,000 (39,168), and can be produced from 120 
female moths. 
The greatest precautions must be taken to 
preserve the eggs during the winter in a perfectly 
dry place ; and they should be looked at occasion- 
ally, to see that no mould gets on them. 
These are the principal points that must be 
attended to previous to the process of reeling. 
Reeling is usually carried on as a business distinct 
from that of rearing the worms, or else it would have 
been described here. 
Every fact recorded in this book must be at- 
tended to strictly, or else success will be very un- 
certain. Only the most important facts are men- 
tioned ; but anything further respecting the rearing 
of silkworms or the sale of cocoons, will be given 
gratuitously by addressing 
THE BOYS' SILK CULTURE ASSOCIATION 
of the United States, 
Main Cocoonery, 700 N. Eighth Street, 
Philadelphia, Pa. 
the end. 
