OF SILK. . 215 



re^lions given for making tlie eggs hatch. 

 However, I cannot here omit mention- 

 ing, that the hatching of eggs in perfons 

 bofoms, as is pradlifed in many places, may 

 poflibly often kill the embryo worm, arul 

 make the breeders of fiikworms wonder at 

 their eggs not producing according to ex- 

 pe6lation, though they were very found 

 . and kept in a due degree of warmth ^ yet 

 this I think may often happen to eggs 

 hatched in the bofom. If the eggs of 

 pullets are fmeared with any clammy h- 

 quid which (lops the pores of the ihell, 

 there will no chicken hatch from fuch eggs, 

 till that which thus (lops the pores is re- 

 moved. The perfpiration and fweat of 

 perfons^ who hatch fiikworms eggs, mufi: 

 often pervade the bag in which they are 

 kept, and may produce the foremention- 

 ed bad effedl on many of the eggs j ibme 

 perfons, however, will produce this bad ef- 

 fe6l more than othei-s, and therefore all 

 people are not alike fit to^hatjl}; ^i^wp^^iYiS 

 in this manner. -.rrr ^7bs^^^"'[s rnsd 



Indeed, in all the prefent methods of 



hatching fiikworms eggs, the frefli'^ir has 



too little accefs to them j whether it is done 



in bags kept in the bofora^^^^i}ajg -boxes 



F 4 " kept 



