Report on Meteorites. * 83 
On communicating a description of the mass to Dr. Hardy, he 
replied, “I have no doubt that the specimen referred to is the 
same which I gave Col. Nicholson. It was found at the head 
of Swanannoah river, near the base of Black mountain, towards 
marked crossing lines. A somewhat similar structure is visible 
in the Cocke county iron. 
The mass contains several rounded and irregular nodules of 
plumbaginous matter, (from half to one inch in diameter, ) with 
which again (and often situated in the midst of the kernels) are 
found large pieces of foliated, magnetic iron-pyrites. In this 
tespect also, the present iron is closely related to the Cocke 
county iron. 
Its sp. gr. = 7-261 
It consists of nickel (with traces of cobalt, ) . 2-52 
Right. car ee oO oe ae 
Insoluble matter, sulphur and loss, : . 1-44 
. 100-00 
17. Cocke county, Cosby's Creek, Tennessee.—t"or our earliest 
notice of this truly wonderful locality of meteoric iron, we are 
indebted to Dr. Troost, (see Vol. xxxvi, P- 250, 1840, ) and 
for an additional aecount of its composition by myself, see Vol. 
xliii, p. 354, (1842.) The history of this locality is still far- 
ther illustrated by the following particulars, derived from two 
