35 o INDEX, 



Igiada, Italian name of Jade, or flintified green Sme&ites, 90. 

 Imprumta, Serpentine -ftorie quarries, 274. 

 Incniflations calcareous. 

 See Confetti di Tivoli. 



Porus. 



Tophus. 



(Travcrtino. 



InolitO) Italian name of gypfura^ 91. 



In/eft, included and fwimming in a cryflallus enhydros, 291. 



Iron in Lavas, 64. 



.1 native, 14, I . 



fand, black, cryftallized, and magnetic, in the Vefuvia* 



tufo, common in volcanic countries, 1 30. 

 . ore, from Vefuvius and ^Etna, 142. 

 n. , large mountains confuting of iron ore, 294. 

 Jfcbia (Ifland) volcanic, 127. 177. 



Lapl (Giov.) at Florence, 262. 



Lapis Bononienfa, a phofphorefcent felenhical fpar, 71^ 



Laftra, Italian name of a flone ftratum, 272. 



Lava, a ftone, produced in the volcanos from foffil fubftanceSj 



fmelted by fubterraneous heat. 

 contains iron, 64. 



and acciden-ally other metals, 4, 



lead ore and Blende, 65. 



filver ore, 65. 

 antimony, 6$. 



