ITALY. LETTER XVIII. 265 



to their author, deferve to be publimed *. The 

 prefenc Marquis Gincri is not lefs a friend and 

 connoiiTeur of the fciences. This appears, among 

 feveral other circumftances, by the goodnefs and 

 magnificent eflablifhment of his china-manufac- 

 tory, which deferves to be confidered as a pattern 

 of a manufactory of that kind. The clay, em- 

 ployed here, is fetched from Tretto in the VI- 

 centine, till they happen to find an equally good 

 one in the Florentine, which the Marquis neglecls 

 nothing to procure. In a feparate room are kept 

 in fine glaffes famples and fpeeimens of the differ- 

 ent clays, for the greater part found in Tufcany, 

 or in France and Germany, and employed in the 

 china- manufactories. The Petunfe and Kaolin 

 from China are not wanting. In fhort, this valu- 

 able collection may be confidered as 'a little cabi- 

 net of natural curiofities ; which is the more re- 

 markable, as the fcience of the earths is fo very 

 ufeful in common life, and as collections of that 

 kind are fo very fcarce. Several forts of quartz, 

 fluors, and other ftones, fit for china-work, are 

 likewife taken care of; and the whole rendered 

 more ufeful by art inftructive catalogue, penned by 

 the beft Mineralogift of this country, Mr. Tar- 

 giont Tozzetti. There are convenient furnaces for 



* Baron Moll died in 1772, 



the 



