Localities of Minerals. 237 
7. Fetid Carbonate of Lime. In ridges; and strata nearly 
vertical, sometimes containing petrifactions. Very fre- 
- quent in Dutchess county, particularly in, the neighbor- 
hood of Rhinebeck Flats, and near Hyde Park. 
8, Fibrous Tale. In granite. Roxborough. 
9. Graphic Granite. North River, near the city of New- 
York. 
10. Graphite. In a calcareo-siliceous gangue. Corlear’s 
: Hook. , 
11. Native pulverulent (or rather granular) Sulphur. In py- 
ritical teas Barren Hill, Montgomery county, Penn- 
sylvani 
‘12, ‘Boies cas Corlaer’s Hook. 
13. Semi-opal. In common Jasper—(which s see. Aig 
14. Scaly Talc. In granite. Roxborough. 
15. Stellated Quartz. Perkiomen lead-mine. 
16. Sulphate of Barytes. In sulphuret of lead and silver. Liv- 
ingston’s lead-mine, Columbia county, New-York. 
17. Sulphuret of Silver. With sulphuret of lead. Same local- 
y 
18. Tourmalin. In masses of crystalline quartz. Rhinebeck. 
Very respectfully, 
F. C. SCHAEFFER. 
—— 
_ The following notices were prepared before the receipt of 
the above letter, 
Other Localities of Minerals and of anima Rematns, and acknow!l- 
edgments of Specimens received. 
Guada aloupe.—Native sulphur, obsidian, pitchstone, native 
alum, basaltic hornblende, alum covered with sulphur. 
‘rte Rico.— Hexagonal crystals of mica. 
Specimens of the above minerals are in the cabinet of Mr. 
°hn P. Brace, at Litchfield, Connecticut. 
