56 BULLETIN 94, UNITED STATES NATIONAL MUSEUM. 



CLEVELAND, EAST TENNESSEE. (Lea Iron.) No. B8. 



Iron, Om. Weight, 221 grams. Slab, 11 by 5 mm., with one 

 small troilite nodule. Found in 1860, Original weight, 150.5 kilo- 

 grams. Composition, as given by F. A. Genth : 



Per cent. 



'Iron (Fe) 89.93 



Nickel (Ni) 8.06 



Copper (Cu) .06 



Cobalt (Co) .56 



Phosphorus (P) .66 



99. 27 

 Reference.— F. A. Genth, Proc. Acad. Nat. Sci. Phila., 1886, p. 366. 



COAHUILA, MEXICO. (See also Sanchez Estate.) No. 64. 



Iron, Hexahedrite. Weight, 3,510 grams. This practically com- 

 plete mass is entered in previous catalogues as of unknown source, 

 having been found in the collections without record. It is unques- 

 tionably the iron described by Prof. C. U. Shepard in the American 

 Journal of Science ^ under the name of "A new meteoric iron of 

 unknown locality in the Smithsonian Museum." Examination 

 shows it to be a normal hexahedrite, and according to Shepard's 

 analysis it hag the following composition : 



Per cent. 



Iron 92. 923 



Nickel 6. 071 



Cobalt . 539 



Schreibprsite . 562 



100. 095 



with traces of copper (and tin?). 



Specific gravity, 7.589. 



The lihysical and chemical characters all agree so closely with 

 irons 'from Coahuila, Mexico, that it is thought to be unquestionably 

 a member of that group, although the mass shows on the exterior 

 surface numerous tendencies to exfoliate, which are lacking in others 

 from this locality. It is, however, placed provisionally among the 

 Coahuila irons. 



COLD BOKKEVELD, CAPE COLONY, SOITTH AFRICA. Nos. 5, 182. 



Stone, K. Three fragments weighing 7 grams; feH October 13, 



1838. 



• Vol. 22, 1881. 



