SILK WORMS. 1 33 



SSE-NONG-PI-YONG. 



The silk worms produced by three ounces of eggs, which 

 occupy a single frame at the moment of their hatching, will 

 cover thirty frames at the close, or last period of their lives. 

 In general, one-tenth of an ounce of silk worms, newly 

 hatched, will furnish a frame of silk worms, in supposing 

 that the frame is as usual, ten feet long, and two feet wide. 

 If the frames are of a smaller dimension, they ought to 

 receive a smaller quantity of newly hatched worms. If 

 they are too numerous for the space they occupy, they will 

 find themselves close, and, consequently, serious accidents 

 will result from it. 



Those persons who intend raising silk worms, to cover 

 more than thirty frames, ought to increase the number of 

 frames destined for the young silk worms, (hatching silk 

 worms.) 



Those who only raise a small quantity of worms, can 

 make use of baskets with small borders. 



SAME WORK. 



The third day, between ten and twelve o'clock, three 

 frames must be placed upon a separate stage. The hatching 

 worms, which have deposited a light bed of dung, must be 

 changed. It must be done with a delicate hand. A quan- 

 tity of silk worms which (at the moment of their hatching) 

 occupied a space the size of a square of a chequer-board, 

 ought to be distributed upon the middle frame. 



