:&i5 THE CULTURE 

 might not be amifs to walh them as foon 

 as they have got their grey colour, before 

 they are laid up. 



The diflempers incident to filkworms 

 after they are hatched proceed, generally, 

 either from their food, or the temperature 

 of the air in which they live. The regi- 

 men of their food may err either in quan- 

 tity or in quality. I have formerly mention- 

 ed the manner of regulating the quantity 

 of their food : it u^ill be a pretty fure rule 

 to avoid giving them too much, if after 

 they have eaten all their leaves, they are left 

 without any for half a quarter of an hour 

 or fo. But if by any accident they have 

 failed too long, it is fafeU: to give them 

 fparingly and often for fometime after, 

 and then of the wholefomeil and befl 

 leaves. And if they have furfeited by over- 

 eating, let them faft a longer time, and 

 afterwards feed them alfo fparingly, ^^y ^^^ 



3ut filkworms are much more liable to 

 fufFer from the bad quality of leaves than 

 the quantity. The leaves of mulberry- 

 trees which grow in moid grounds, or in 

 places fhaded from the fun, are unwhole- 

 fome; and thole which grow on fuckers 

 produced from the trunk, or root, or prin-. 



cipal 



