356 Description of three varieties of Meteorite Iron. 
Arr. XXXI—Description of three varieties of Meteoric. Iron. 
—1. from near Carthage, Smith County, Tennessee; 2. from 
Jackson County, Tennessee ; 3. from near Smithland, Living- 
ston County, Kentucky ; ie G. Troost, Prof. in the si 
sity of Nashville, Tennessee. . 
1. Meteoric Tron from Carthage, Synith County, Tennessee. 
In nile xlix, p..336,.of this Journal, I published. a descrip- 
tion of four varieties of meteoric iron, one of which was of the 
highest interest as its fall had been mitnosiad by several per- 
sons. My collection has since been augmented by three other 
newly discovered specimens. A friend of mine, Samuel Morgan 
of Nashville, learned sometime in 1844 that a large mass 
some metal had been found in Smith County near Carthage, Ten- 
nessee, which was considered as silver, and a small sample of it 
was given to him which we both recognized immediately as me-_ 
teoric iron. Mr. Morgan immediately endeavored to learn its his- - 
tory and to get possession of it; but as I observed above, it be- 
ing considered a precious metal, he failed, and every thing was 
enveloped in mystery, -till it became known that it was not 
silver. He learned then that it was in the possession of a black- 
smith, that it was found about a mile from Carthage the County 
seat of Smith County, and Mr. M. obtained it last year for amodet- 
ate price. It weighed 280 pounds—an oblong shapeless mass, its 
surface showing here and there some projecting oetahedral erys- 
tals. A piece of it was sawed off weighing 39 Ibs. which now 
forms one of the ornaments of my cabinet. This magnificent 
- Specimen has a polished surface of about 12 by 94 inches. None 
of the metallic meteorites, that I have seen, exhibit such beauti- 
ful Widmannstattean figures which have become visible on its. 
ished surface, without the aid of acid. It shows rhomboidal and 
triangular sections which are generally a full inch, and a few, 
more than an inch, inlength. These figures cover uniformly the the 
whole of the polished surface. No het 
ible in it. There is only one cavity of about 4 1 inch on its surface. 
The unpolished part is partly crystallized and partly amorphous 
and compact. Some crystals (parts of octahedrons) project for 
more than an inch above the mass. The iron is very tough : 
alleable, and, as it contains no traces of pyrites, not susceptible 
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