2 TRAVELS THROUGH 



There is a good China-pottery at Venice. They 

 fetch the clay from fome low hills in Territorio 

 di Tretto, Vicariato di I'iene, where this clay-bed 

 covers old//wr mines, which are funk in flate and 

 volcanic ground. The fame clay is employed in 

 the Cbim-manufaflory at Florence. It is good, fine, 

 and white enough, but wants that foft faponaceous 

 and micaceous fubftance, which is peculiar to the 

 beft China- clays. A whiter clay of the fame kind 

 has been lately difcovered in a valley near Bergamo^ 

 but it is likewife deftitute of this glimmer. The 

 cafes of another apyrous earth, wherein the china 

 is fet in the fire, had a grey colour, fprinkled with 

 white fpots like porphyry. 



The Italian Naturalifts pretend, that the Adria- 

 tic fea, inflead of dimiriifhing, continually increafes. 

 Among feveral evidences, they fupport this opi- 

 Jiion by a fact which cannot be doubted; that is, 

 digging at Venice, they very often meet in the 

 ground with three different ^pavements, two 

 of them lying below the prefent paving. This 

 has been obferved, for example, in the Piazza 

 S. Marco, and may have been occafioned by the 

 growing and heightening level of the fea. Certain 

 it is, that, after heavy rains, and in the autumn, 

 when ftofmy weather raifes the v/ater, they very 

 often are under the neceflity to go in boats from 

 one coffee-houfe to another But might not the 



collective 



