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tinous body : and this flow dllTolutlon, and 

 converfion of the zeolite into jelly, was af- 

 terwards confirmed by others; though expe- 

 riments made on newly difcovered fpecies 

 of this ftone have fliewn that more than 

 one are not, in any manner, affedted by 

 acids, even when highly concentrated. From 

 among fix fpecies of the zeolites of Lipari, 

 we have (eea that the third and fourth pre- 

 fently form, with acids, a tranfparent gela- 

 tinous body ; which is lefs completely cha- 

 racterized in the firft and fifth ; and not 

 produced at all in the fecond and fixth 

 fpecies. 



M. Pelletier has analyfed the zeolite of 

 Ferro, and found that it is compofed of 20 

 parts of alumine, 8 of lime, 50 of filex, and 

 22 of phlegm (or impure water). Other 

 analyfes have been made, of other zeolites, 

 by the chemifts Bergmann, Meyer, and 

 Klaproth. The minute* fize of mine, and, 

 ftill more, the fmall quantity I obtained of 

 them, prevented me from making a fimilar 

 analyfis of them with the requifite accuracy. 



I v^as. 



