( i83 ) 



ready been made by Faujas, BufFon and 

 others. I fliall only mention thofe which 

 afford prodii<5ts that have relation to our 

 prefent fubjeiSt. 



We read that the iiland of Ternate, in 

 Afia, throws out a confiderable quantity of 

 pumices, as does, likev/ife, one of the nu- 

 merous volcanos of Kamfchatka. 



As to thofe of Africa, we have but very 

 imperfecl accounts of them, with the fingle 

 exception of the peak of Teneriffe, one of 

 the loftiefl: of volcanos ; which, with refpe(ft 

 to its fituation, height, form, and crater, 

 and the hot fumes which iffue from it, has 

 been accurately defcribed by the Chevalier 

 Borda. But it were to be wi{hed that we 

 had a more complete defcription of the, 

 materials of which it is compofed ; as the 

 French traveller only tells us that they are 

 ^' fand, black and red calcined Itones, pu- 

 •^ mices, and flints of different kinds *." 



'•■^ Voyage en diverfes Parties de FEurope. 



N4 It 



