ITALY. LETTER XXIV. 317 



fhew, than a fcientifical collection. Among the 

 natural curiofities, I obferved a great cryftalliza- 

 tion of fine emeralds, in the form of columnar 

 fherl, with fmaller polygon and brown flierl-cryftals 

 flicking to a matrix of quartz. Some white opaque 

 and milk-coloured pebble-flints, with inclofed water, 

 deferved likewife to be noticed. 



Milan is one of the molt agreeable places in 

 Italy. 



The Prime-Minifter Count Firmian poffefTes a 

 choice library and gallery of paintings, and every 

 quality to improve the arts, the fciences, and the 

 public welfare. His civility to every friend of the 

 fciences is remarkable. 



The Imperial Chamberlain and Privy-Counfel- 

 lor Mr. Pietro Verri, is known by his valuable 

 Medilazioni full* Economia politico, publifhed at 

 Leghorn. 



P. Paolo Frifi, a Barbanite Profeflbr of the 

 Mathematics, and member of feveral learned foci- 

 ties, is not only a deep philofopher, but a learned 

 connoifleur in many other fciences. 



P. Ruggiero Giufeppe Bofcovich, a Jefuit, and 

 Profeffor of Aftronomy at the college* has been 

 long known as a fagacious aftronomer and philofo- 

 pher. He has made extenfive travels in France, 

 England, Turkey, and Poland ; and was recom- 

 mended to obferve the tranfit of Venus, when the 



late 



