298 INDEX. 



Silkworm?, a general brief view of their life 67. The 

 place proper for rearing them 68. No leaves pro- 

 per for them but the mulberry 73. Their four fick- 

 nefs's or moultings commonly called fleeps 113. 

 Times and appearances of each moulting defcribed 

 at large 114, &c. The final caufe of their moul- 

 ting 120. Time of moulting varies with the climate 

 121. The knowledge of their moultings very ufe- 

 ful 122. The length and thicknefs of the Silk- 

 worm after eack moulting 12^. Cafts not only its (kin 

 but alfo its fcull at each moulting 118, 119. The eyes 

 of theSilkworm 119. Jts breathing vents 119. Its life 

 to the time of fpinning divided into five ages 1 22. The 

 management of Silkworms <juring their two firft ages 

 1 23. How oft to be fed in the day, not to be over- 

 whelm'd VvMth leaves 125. To be kept warm in 

 temperate climates, while young 129. The time 

 of their firft ficknefs 130. To know when they re- 

 cover from it 133. Their fecond ficknefs and re- 

 covery 134. The management of them during their 

 two next ages, 137, &c. How to make them lie. 

 thinner 139. Their appearance after their third 

 moulting 141. And after their fourth 145. The 

 fifth age of the Silkworm, viz. From their fourth 

 moult till ready to fpin 146, &c. The fibres to 

 which they ftick, not to be feparated from their 

 claws 149. They are to be well fed at their laft 

 age 150. It lafts nine or ten days 152. They de- 

 fift then from eating, and are ready to fpin 153. 

 The figns of their being ready 153. To manage 

 them while fpinning i6j. Sic. Muft be kept airy 

 while fpinning in hot weather 169. Lazy in fpin- 

 ning how to help 1 66. 7 he manner of their form- 

 ing their pods 169, Sic. 7'hc matter out of which 

 they form them 170, 171. How foon they finiih 

 them 173. Caft a fifth fkin while inclofed in the 

 pod 177. Change to a chryfalis 173. Continuance 

 in that ftate 174. Throw off a fixth fkin and be- 

 come moths 174. How many worms make a pound 



of fiJk. 18 1. 



Sick 



