5a8 Dr. Per aval on the FffeHs ofFamim, ^c. 



pain nor opprefTion j but that at the point of 

 time when he was lofing his fenfes, he experienced 

 a delightful kind of delirium. * If, under fuch 

 circumftances, this perfon could be fufficienrly 

 collefted to notice liis feelings, the teftimony. is 

 decifive, that cpprejfion was not one of them ; and 

 confequently, that he could not fuffer Uom/uffoca^ 

 tion. And the account receives fome confirma- 

 tion from what Dr. Heberden fays, in i)is lec- 

 tures on poifons, that he had feen an inftance, in 

 which the fumes of charcoal brought on the fame 

 delirium, which hen-bane, and other intoxi- 

 cating vegetables produce. Abbe Fontana 

 breathed a certain portion of inflammable air, 

 not only without inconvenience, but with un- 

 ufual pleafure. Fie had a facility in dilating the 

 bread, and never felt an equally agreeable fenfa- 

 tion, even when he inhaled the pureft dephlor 

 gifticated air. But he fuffered greatly from this 

 gratification, in a fubfequent experiment: For, 

 having filled a bladder with about three hundred 

 and fifty cubic inches of inflammable air, he 

 began to breathe it boldly, after difcharging the 

 atmofpheric air, contained in his lungs, by a 

 violent expiration. The firfl: infpiration produ- 

 ced a great cpprefllon : Towards the middle of 

 the fecond, he was obferved to become very 

 pale, and objedls appeared confufed to his eyes : 

 Neverthelefs, he made a third infpiration. His 



*'Rozler. Obfervaticns de la Phyfiqae, Jan. r, ij'^- 



ftfcngth.. 



