Mr. Delahigarre on Silk Worms, j^y 



at the foot of your bed, under the mattrafs or feather bed, 

 then you move them nearer and nearer by degrees to the 

 middle of the bed. The bags mufl be opened every day, ta 

 admit frefli air to the eggs, and facilitate their pcrfpiration. 



When they turn whitifli, it is a fign that the worms will' 

 come out very foon : then a greater attention is neceffary to 

 the eggs ; befides the cuflomary airing, they ought to be 

 moved and flirred up five or fix times in the courfe of twelve 

 hours, for fear that the embryo fliould be choaked by a too 

 clofe heat. Any inconvenience of that kind, may be better 

 avoided by putting the eggs in fmall boxes of pine boards, 

 about an inch deep, pafled infide with white paper, the bottom 

 of which is filled with cotton of about 6 lines deep and 

 covered with a bit of white linen, upon which the eggs arc 

 fpread. 



Though the eggs hatched in that way are not liable to be 

 heated fo foon as in the bags, the boxes notwithflanding ought 

 to be opened once a day, and oftener according to their age 

 or time of hatching. 



In Italy, Spain and fome part of France, it is the bufmefs 

 of women to hatch the eggs of filk worms, by wearing the 

 above mentioned bags under their petti-coats, and when they 

 go to bed, they put them under their pillow for the night. 

 Each of thefe ways is good, provided care is taken to air them 

 as recommended before. The mean degree of heat mod 



