27 * Analyjis of the Ah. 



reous vapours. And it is not improbable, 

 that one great defign of nature, in the ftru- 

 cture of this important and wonderful vifcus, 

 was to frame its veficles fo very minute, 

 thereby effectually to hinder the ingrefs of 

 grofs feculent particles, which might be inju- 

 rious to the animal ceconomy. 



This quality offalts ftrongly to attract ful- 

 phureous, acid, and other noxious particles, 

 might make them very beneficial to man- 

 kind in many other refpects. Thus in feve- 

 ral unwholefome trades, as the fmelters of 

 metals, the cerufs-makers, the plumbers, &c* 

 it might not unlikely be of good fervice to 

 them, in preferving them, in fome meafure 

 at leaft, from the noxious fumes of the ma*- 

 terials they deal in, which by many of the 

 foregoing Experiments we are affured mufl 

 needs coalefce with the elaftick air in the 

 lungs, and be lodged there ; to prevent which 

 inconvenience the workmen might, while 

 they are at work, make ufe of pretty broad 

 mufflers, tilled with two, four, or more 

 Diaphragms of flannel or cloth dipped in a 

 folution of Sal Tartar or Pot-afi\ or Sea-Salf, 

 and then dried. 



The like mufflers might alfo be of fervice 



in many cafes where perfons may have urgent 



occafion 



