OF THE ASBESTINE EARTH. 193 



Exp. 25. Its analyfis yielded, of terra pon- 

 dcrofa, o; aerated chalk, 14.3 ; aerated mag- 

 nefia, 28.8; clay, i ; filiccous earth, 53.9; and 

 calx of iron, 2. 



ix. The AJbeJlos of Sablbcrg, commonly called, 

 Mountain Cork. 



THIS is dug out of a filver mine at Sahlbcrg; 

 it is white, compact, and claftic like cork, and 

 with its fibres varioufly interwoven. 



EXP. 26 and 27. It has the ufual character in 

 the lire : Hut it Is worthy of remark, that when 

 properly heated in the flume of a blow-pipe, it 

 aflbrds a transparent globule, which fcldom hap* 

 pens to the other afbdli. 



Cronfledt's Mineral. 104. i. a. 



EXP. 28. By analyfis the centenary produced, 

 of terra pondcrufa, o; aerated chalk, 10; aera- 

 ted magncfiu, 22; clay, 2.8; iiliceous earth, 

 62 ; and calx of iron, 3.2. 



x. Of tbe AJbeflos of Sablbcrg, known by tbc 

 Name of Mountain Leather. 



IT differs from the foregoing variation in its 

 N laincllatcd 



