Notice of Prof. Clark’s Thesis on Metallic Meteorites. 19 
tallic oxyds. It is highly crystalline within, so that it may be 
cleaved in three directions, parallel to the faces of a cube almost 
as easily as galena. A piece from the larger mass in the Imperial 
Museum at Vienna weighs about 4 lbs., and is described by Hai- 
dinger as being apparently an individual crystal. The metal is 
remarkably homogeneous, and presents to view on etched sur- 
faces, three series of fine parallel lines, which intersect each other 
in the usual manner. It is malleable, very hard, and of light 
steel-gray color. Gr. =7-71. Analysis by Duflos and Fischer. 
- . - - 91:882 
“ 
eet 
Silicon, . - - 2072 
Chlorine, 
100-000 
28. Asheville, N. C.=29. Caille, near Grasse, Dept. du Var 
France. Discovered to be meteoric by Brard in 1828, though it 
had served as a bench before the parish church for more than 
years. It is crystalline and cleavable ; and contains a small quan- 
tity of magnetic pytites. The figures brought to view by etch- 
Ing are bounded not by straight, but by sinuous, raised lines. 
Gr. = 7-64, Aualysis by De Luynes. 
Iron, - in 82°63 
Nickel, - in - . iad 
Copper - : - + : 
Manganese, 7 . : : 
100-00 
_ 30. Durango, Mexico. Described by A. von Humboldt in 1811. 
Weight 30,000 to 40,000 lbs. The mass lies in the city of Du- 
Tango ; only a few small specimens having been detached from it. 
It is compact, but exceedingly cleavable; and incloses a small 
quantity of magnetic pyrites. Very perfect Widmannstattian 
figures are visible on etched faces. ‘The bands are often so wide 
and so near together as to have scarcely any intervening spaces. 
Gr. = 7-88, Rumler.—31. Claiborne, Ala.—32. Schwetz, on the 
