i68 THE CULTURE 



chaffing- difh of clear charcoal, and ihiftlng; 

 it to diiierent parts of the chamber. The 

 fume of vinegar is alfo faid to be good for 

 them, and thefe things are alfo directed at 

 other times when they are fick, but if they 

 are well they will rather hurt them. 



Cold and damp weather during the time 

 of their fpinning is extremely hurtful j in 

 very cold v»'eather the worms defift from 

 tlieir w^ork ; you may fee them, while their 

 balls are yet thin, either moving very flow, 

 or quite ina6live j if you remove one of 

 the balls to a warm place, the worm im- 

 mediately begins to work with a6iivity, 

 and def:ils again when put in the cold, 

 where, if it continues, the worm at length 

 totally leaves off its fpinning, and is 

 changed into a grub or chryjalis, which is 

 its flate in the ball before it becomes a 

 moth. This interruption of its work, 

 though it fhould continue to fpin, makes 

 the ball difficult to wind off, the thread 

 often breaking ; wherefore, if this kind of 

 weather fliould happen, you muft keep the 

 room dole and warm, ufmg perfumes and 

 fires of clear charcoal on iron chaffing- 

 difhes as above, and it is advifed by fome 

 to put a piece of iron among the coals, to 



keep 



