54 Dr. Beudoes’s Obfervations on the 
view to fhew the transition from black bafaltes to granite, this 
Species and the granite from Efterelles would form two con- 
tiguous links. 
“ 5th Oriental bafaltes, with ftripes of granite. The 
“ common black bafaltes, fafciated with large ftripes of red 
“ granite, blended and joined to the bafaltes without any 
vifible Separation ; not as the pebbles in a breccia, or as 
“ fi ffures healed up and filled with granite, but as if both the 
“ bafaltes and granite had been fluid together 
Thofe Specimens, which ftiew how copioufly volcanos produce 
feldfpath, fhoerl, and mica, Specially the two former (fubftances 
common both to bafaltes and granite), tend greatly to efta- 
blifh the near relation between thefe two kinds of rock. I 
was furprized, at this day, to find an excellent obferver 
ferioufly maintaining, that thefe earthy cryftallizations are 
merely ejeded, and not generated, by thefe fires +• 
Attempts, I am aware, have been made to fet up boundaries 
between the columnar granite of the Euganean hills, the 
granite of the volcanic provinces of France* the granitello of 
the Italians, and fuch granite as is found to conftitute high 
and extenfive ranges of mountains. As to a difference in 
the fize of particles, and hardnefs of the ftone, the firft 
diftindion is neither conftant, nor by any means calculated to 
perfuade us, that a caufe, capable of producing the one, is 
inadequate to the produdion of the other. It may probably 
be explained from the quantity of matter, more or lefs perfed 
fufion, a different length of time in cooling ; and in the latter, 
charader I fufped the obfervers to have been deceived by the 
* See Ferber’s Travels in Italy, pp. 231, 232. Englilh tranflation. 
f Docomieu, Ifles Ponces, and Laves de l’Etna, paffim. 
