160 GEOLOGICAL RECONNOISSANCE 
from the ore, contains 0.019 per cent. of silver, equal to 5 ounces of silver 
in the ton of galena. 
B.—GALENA FROM LAWRENCE COUNTY. 
No. 18. Galena, from E. W. Haughton’s diggings: 
Occurs associated with alight, ochre-yellow, argillaceous rock, contain- 
ing oxide of zine (v. No. 37). 
Is pure sulphuret of lead, with only traces of iron and silver. The 
lead, smelted from the ore, contains 0.00292 per cent. of silver, equal to 
0.78 ounces of silver in the ton of galena. 
C.—GALENA FROM CARROLL COUNTY. 
No. 19. Galena, from Coka and Mitchell’s diggings: 
Is pure sulphuret of lead, with only traces of iron and silver. The 
lead, smelted from the ore, contains 0.01083 per cent. of silver, equal to 
2.9 ounces of silver in the ton of galena. 
TABULAR VIEW—Of the composition of the different kin of galena 
from the counties of Marion, Lawrence, and Carroll. 
oSa 
Contain in 100 parts,= S § 
86.6 parts of lead.“ ="s 
LOCALITY. with oo” 
ge 
Iron. Silver. jd ee 
No. 11, from Wood’s mine-+++--+++eeerees none 0.00624] 1-67 
No. 12, from New York company’s diggings: 0.108 0.01066} 2-88 
No. 13, from Molton’s diggings: -++.+.++--+- 0.160 0.00294) 0-784 
No. 14, from Seawell’s diggings. -+++++-+++. none 0.14014/37-44 
No. 15, from Hudson’s diggings. +++. +++e+e- trace 0.00746 2-00 
No. 16, from McCarty’s diggings. --+-.+.++.- none 0.00825) 2-25 
No. 17, from Jemmy’s creek diggings------- 0.100 0.01990} 5-00 
No. 18, from E. W. Houghton’s diggings. ..- trace 0.00292) 0-78 
No. 19, from Coka & Mitchell’s diggings. ... trace 0.01083| 2-90 
Only one of these ores (No. 14) would probably pay for the extraction 
of the silver; the others are good lead ores. If, by sinking shafts, and 
ascertaining the extent of the ore-deposit at Seawell’s diggings, the pre- 
sence of a sufficient quantity of the ore can be proved, there is no doubt 
that, with judicious management, the extraction of silver will prove very 
