84 September 1748. 



for working, though it is not one of the 

 fineft Jdnd of marbles. They make many 

 tombftones and tables, enchafe chimneys 

 and doors, floors of marble flags in the 

 rooms, and the like of this kind of marble. 

 A quantity of this commodity is fhipped to 

 different parts of America, 



Muscovy glqfs,* is found in many pla- 

 ces hereabouts, and fome pieces of it are 

 pretty large, and as fine as thofe which are 

 brought from RuJJia. I have feen fome of 

 them, which were a foot and more in 

 length. And I have feveral in my collec- 

 tion that are nearly nine inches fquare. The 

 Swedes on their firft arrival here made their 

 windows of this native glafs. 



A pale grey fine limeftone,-}- of a com- 

 pact texture, lies in many places hereabouts, 

 and affords a fine lime. Some pieces of it 

 are fo full of fine tranfparent cryftals, that 

 almoft half of the ftone confifts of nothing 

 elfe. But befides this limeftone, they make 



lime 



* Mica membranacea, Linn. Syft. nat. 3. p. 58. 



Micamembranacea pellucidijfima fiexilis alba. Waller ius's Min. 

 p. 120. 



Ruffian glafs, Mufcovy glafs, Ifinglafs, Vitrum rutbeniatm, 

 Vitrum Maria. For/ter's Introd. to Mineralogy, p. 18. 



f Marmor rude, Linn. Syft. nat. 3. p. 41. 



Calcareus particulis fcintillantibus . Wall. Min. p. 39. 



Cakareus fcintillans, glittering limeftone. Forfier'% Introd. 

 to Mineral, p. 9. 



