( 2^3 ) 



I repaired, therefore, to Giara, in Sep- 

 tember 1789, to the delightful villa of the 

 Marchefe Orologio abovementioned, fitu- 



ated 



doubtedly contributed much to the fodil hiftory of thefe 

 mountains, the volcantzation of which he firft difco- 

 vcred and made known. We are likewife greatly in- 

 debted to him for the catalogue he has annexed, and 

 which forms a kind of appendix, to his hiftory. But, 

 befides that I frequently met with objeifls different from 

 thofe obferved and defcribed by him, the views with 

 which we treated the fame fubjecl were entirely differ- 

 ent. I propofed to defcribe lithologically, and thence 

 to characterize, the Euganean products I met with in 

 ray excurfions, in the fame manner as I have defcribed 

 thofe of the two Sicilies: Sir J. Strange was fatisficd 

 with giving only fimple iiidications of them ; nor do T 

 think I fhall in the leaft detra£l from the merit of this 

 excellent author, if I fay thefe indications were not al- 

 ways the moft accurate ; fuch a defedl being lefs im- 

 putable to him than to the time in which he wrote j 

 fmce it is only within thefe few years that the minera- 

 logy of volcanos has been ftudied with precifion and 

 accuracy. 



I fliall take this opportunity to 'anfwer a quef-, 

 tlon which may be aficed j which is : Why, if I in- 

 tended to give a lithological effay on the Paduan volca- 

 noes, I did not mention it in the Introdu£lion, whtrc I 

 enum.erate the principal beads of the vi'ork. I reply 



that. 



