[ *3* ] 



denfation : now they increafe even 

 to a very large fize in the coldeft 

 water, and at lad detach themfelves 

 from the fkin. A warm bath is 

 not very proper to obtain the air 

 oozing out of our ikin. Water 

 having been warmed has loft a good 

 deal of the air naturally contained 

 in it, and thus is very apt to abforb 

 the air oozing out of the ikin. The 

 beft water for this purpofe is pump- 

 water frefh drawn. 



If we keep our arm, or any other 

 part of the body, under water, and 

 rub off all the air bubbles flicking 

 to the fkin, we fhall fee in a little 

 while a great many fmall ones 

 fucceed. But the eafieff. way to 

 convince one's felf of the continual 

 oozing out of air from our ikin, is 

 to Tub the fkin with the edge of an 

 inverted glafs full of water, and 



long 



