O F S I L K. 93 



nccefTary degree of warmth. I will fup- 

 pole you have a frame containmg fix draw- 

 ers one over the other, and that each 

 drawer is about an inch in depth, and twen- 

 ty inches by twenty fquare j there will then 

 be nearly the fpace of three fquare feet in 

 each drawer : I will alfo fuppofe that one 

 fquare foot will contain all the worms that 

 are produced from an ounce of eggs when 

 juft hatched. 



Suppofe now you were hatching three 

 ounces of eggs, of which you intend to 

 make three different fortments, as coming 

 out at three different times, an ounce each 

 time J then the firft ounce that hatches 

 fhould be put into the middle of the upper- 

 mofl draw^er, and marked as the firil hatch- 

 ed ; it will in this drawer take up the fpace 

 of one fquare foot, and there will be the 

 fpace of two fquare feet left in the drawer, 

 which will be occupied by the worms by 

 the time they have pafs'd their firft moult- 

 ing. The fame is to be underiiood of the 

 fecond hatched ounce, which fhould be 

 put into the third drawer ; and of the third 

 hatched ounce, which fhould be put into 

 the fifth drawxr. When the firfl hatched 

 worms have grown to the fize of their 



drawer. 



