158 Miscellaneous Notices, &c. 
ry, containing bivalve shells, several of which are in my pos: 
session, and the “cells,” appear to be made by some aquatic 
insect. The ridge abounds in different kinds of flint, born- 
stone, gerne: c&c. 
No. 42. Three varieties of sandstone, used in buildings, &c. 
depen 
No. 43. A beautiful deep red ochre, here called Terra de 
Sienna, a name frequently given to ochres, as an indication 
of excellence ; this is said by painters to be good ; from the 
Yellow springs, Green count 
No. 44. Yellow ochre, Fearing township, Duck creek, a 
lar, . bed. 
45. Tufa and earth, deposited in vast beds, at the 
callow springs, Green county Ohio. 
No. 46. Red ochre, from Little Muskingum creek, Law- 
rence township. 
47, Alum earth, from Wolf creek, township of Wa- 
tesforid extensive 
No, 48. White clay, u used for pots in the ar Paarincio: 
ry at Louisville, from Perry county, a few miles 8S. W. fro 
Zanesville, and near the * Flint Ridge.’ 
No. 49. Pyritous sand, Marietta 
No. 50. Pyrites, found in digging a well on Wolf creek. 
No. 51, Clay, from the “ deep cut,” Ohio canal, thirty feet 
below the surface. 
No, 52. Sulphate of = found in digging a well ; depos 
ited in the crevices of c act brown clay ; commeneing 
six feet below the selects gad extending fifteen feet ; sane 
quite full of it; twenty one feet below the surface a bed of 
pyrites four feet thick ; then a bed of stone coal three feet 
thick, and then water; well dug on the hills, or broken up- 
lands, eight miles East of Marietta, 
ormation in that part of the country, where I 
reside, being altogether of Sago pe character, is not ve- 
ry rich in minerals; iron ore, and the different sulphurets, 
being — J meet that have yet come to light— 
I have in my possession a very fine piece of copper that 
was obtai from pyrites, a few miles from Marietta, on 
Duck Creek—the bed is said to be extensive; the pyrites 
were first roasted, then os erized, and melted outin a large 
crucible by . blackapiiibts fire; I ‘should judge they afforded 
thirty to fifty per cent of the pure copper; from one 
crucible, ine ra three or four ounces—should any 
