( 44 ) 



the thermometer ftood at only 48 j degrees, 

 than from I know not what of a fufFocating 

 nature which the air had in it. Thefe 

 Stoves now retain Httle more than their 

 name, and are nearly deferted. In facft, 

 though they ftill retained their virtue, and 

 were efficacious in the cure of various dif- 

 orders, how would it be poffible to make 

 ufe of them, when they are deftitute of 

 every convenience necefiary to that pur- 

 pofe ? 



When M. Dolomieu vifited them, the 

 "whole ground on which they ftand was pe- 

 netrated with hot vapours, which, under the 

 form of a thick fmoke, iffued from fmall 

 apertures of about an inch, or two inches, 

 in diameter. When I was there, circum- 

 ftances were much changed, as ufually hapr 

 pens in volcanos, where the prefence of fire 

 manifefts itfelf fometimes more and fome*- 

 times lefs. There was then only one aper- 

 ture, of about an inch in diameter, from 

 ■which, from time to time, iflued a thin 

 flream of fmoke, with a ftrong fulphureous 

 4 fmello 



