( ^5o ) 



and beautiful Vv^hich any volcanos afford. 

 Near Teolo rifes a fmall hill, called the 

 Monte del Boldu, principally compofed of 

 ftony globes of various fizes, difpofed in 

 itrata, tenacioufly adherent, with a central 

 nucleus. Thefe globes are of an iron co- 

 lour, and fprinkled over in every part with 

 lucid points, which at firft view I imagined 

 micaceous ; but, on examining them atten- 

 tively, I difcovered they were fo many 

 particles of pitch-ftone, the pechjiein of the 

 Germans. When viewed in a bright light, 

 they appear white, fome more and fome 

 lefs, and all have a degree of tranfparence. 

 They are rather mechanically united than 

 combined wdth a granular bafe, which ap- 

 peared to me a foft horn-flone. The fur- 

 nace changes thefe globes into an enamel, 

 as black and opake, as it is folid and com- 

 pact. 



What I obferved in this lava induced me 

 to hope that in fome other part of the Eu- 

 ganean mountains I might find a pure 

 pitch-ftone lava ; which I, in fad, after- 

 wards 



