O F S I L K. 133 



hatching, and the few that fliall happen 

 to be tardy among the fecond hatching 

 transfer to the third, and fo on. Yet if 

 there is but Httlc diilance, for inftance, 

 only half a day, or even almofl: a whole 

 day, between the fickening of thofe which 

 lie in the fame draw^er, you may defer fe- 

 parating them till their fecond moult, or till 

 their third, if the difference of time is too 

 little at their fecond ; the difference gene- 

 rally increafing at each moult. 



You muff however take care to feed thofe 

 which are in a feeding ffate among the 

 fick ones, if you do not feparate them, hut 

 do it very fparingly, fprinkling the leaves 

 very thin, that you may not bury the lick 

 worms. Moil of what I have been faying 

 tends to one principal end, viz. that of 

 keping the worms of different ages diffin6l 

 from one another, and whichfoever of the 

 methods you choofe, you will be fenfible 

 that it is an ufeful and neceffary thing. 



You will not be at any lofs to know 

 when your worms have moulted and reco- 

 vered from their firft ficknefs, the appear- 

 ance they then make being very different 

 from that which they had during their 

 diforder, according to the marks given in 

 K 3 the 



