Mr. Belahigarrc on Silk Worms, 17-1 



(Ans.) a good egg impregnated by the male, takes 

 fucceffively the colour of gridehn, of purple, and at lafl; of 

 an aftiy hue : it mud crack under your nail with a lliiny 

 and thick matter, whilft the bad one makes no noife when 

 bruifed, and it is a kind of fluid and dilated Snhiidinze. 



(3d Que.) How are you to preferve the eggs, and how 

 prevent thern from being hatched before the leaves of the 

 Mulberry are put forth ? 



(Ans.) You muil keep the eggs in a dry place, free from 

 froll in winter, as well as from heat in fpring and fummer. 



The beft method is, to leave the eggs on the (luff which 

 they were laid upon by the female : you need not take them 

 oif fooner than two or three days before the time of hatching. 



('4th Que.) Arrt the eggs which come out of white cocoons, 

 preferable to thofe afforded by yellow ones ? 



(Ans.) The eggs of white cocoons, produce worms much 

 Inferior to thofe of yellow cocoons. The reafon is this : — the 

 white cocoons gives lefs filk ; hence it is very right to 

 prefume, that the worms which made the greatefl quantity of 

 filk, were the {Irongeft and the mod free from any diforder ; 

 on the other hand, it has been found by experiment many 

 times, that from 300 to 320 white cocoons give only one 

 pound weight of filk, whilfl from 230 to 240 yellow cocoons 

 produce an equal quantity ; the fame difference in the quality, 

 was proved in the fpinning of both. 



