72 
[Assembly 
in the manufacture of the finer kinds of pottery, and if in abundance 
will no doubt be valuable. 
The following minerals also belong to this county : 
Graphite — Several localities, but unimportant. 
Agaric mineral — In a cave near Watertown. 
Sulphate of strontian— Chamont Bay. 
Carbonate of Strontian-— Associated with fluor spar, according to Dr. 
Emmons. 
Fluor Spar — Banks of Muscolunge lake, crystals of a foot in diame- 
ter have been found here. 
Phosphate of lime — ^Banks of Vrooman lake and elsewhere. 
Serpentine, massive and crystallized — Near Oxbow, &c. 
Amianthus — Associated with the preceding. 
Hornblende, tremolite, pargasite — Many localities. 
Feldspar — Crystallized. 
Mica, crystallized and plumose — Several localities. 
Pyroxene — Several localities. 
Idocrase, the primary, with the lateral edges truncated — Near Ox- 
bow. 
Brucite or chondrodite — Near Oxbow. 
Spinelle, of a fine blue colour, and sometimes f of an inch in diame- 
ter — two localities near Oxbow. 
Iron pyrites — The common variety is abundant, the plumose is said 
to occur in Champion. 
KINGS COUNTY. 
The only substance heretofore found in this county, which is at all 
connected with my department of the survey, is peat, reported to be 
common and sufficiently abundant. Several minerals, however, occur 
in bowlders, which have been brought hither by some mechanical agen- 
cies, the nature of which is not yet understood. 
LEWIS COUNTY. 
There are few counties in the State more deserving the attention of 
the mineralogist than this. The cursory examinations which have been 
