.::c 



INDEX. 



AG ES of the Silkworm, how diftlnguifhed, 122. 

 Air, its influence on Silkworms 22o> 221. Me- 

 thod of fupplying frefli air 222. 

 America, its climate proper for Silkworms, 2, 3, Ad- 

 vantages of filk in the colonies would exceed thofe 

 of tobacco 3. 

 Animals not naturaliz'd immediately to ditterent cli- 

 mates. This true of ftlkworms i. 



Breed of Silkworms, on its degeneracy 204. f An ex- 

 periment propofed to improve it 206. Another ex^ 

 periment of .curiofity propofed 209. 



Chryfalis the fecond form into which the Silkworm 



changes 176. 

 Cleaning of Silkworms. How you are warned of its 



neceffity 143. The method of doing it in the l^ft 



age 147. An additional chapter on cleaning and 



removing the worms 275. 



Dreffing proper for mulberry-trees, 58. 



Diftempers of Silkworms from furfeit 218. From bad 



leaves 219, 220. From clofe air 221. Frpm moift air 



226. From peftilential air 224. 

 Dryed chaff its ufe in moift weather 227. 



England how far fuited to the culture of filk 4. 

 Eggs of Silk-moths, what kind beft for England 2. 

 To prevent their hatching 7. To choofe good ones 



71, &c. Not more to be hatched than you can feed 



72. Time of hatching them 73. A method to keep 

 ;heni from hatching 75. How to manage when they 



I hatch 



