MARCH, 1907. 
IRON METEORITES — FARRINGTON. 
105 
On strong etching the surface becomes dull with a peculiar velvet sheen. 
No cleavage has been observed. 
On the other hand, a certain orien- 
tation of similarly situated particles is indicated by the appearance in 
reflected light. 
The structure of the nickel-iron is compact; the con- 
tent in nickel plus cobalt 16-17 per cent. 
Except for the etch bands, 
the members of this group are similar in chemical composition and 
luster to the etched faces of members of the Morradal group. 
STREAKS. 
ndet. Analyst. 
WrtOlGEr. ci 4c 41% 
Pee yeni T i Geto ch os 
M. Bocking 


Baumhauer and Seelheim . . 
J. Fahrenhorst ..... 
C. Rammelsberg.... 
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Reference. 
1830, Zeit f. Phys. u. Math., VIII, 279-284 
1835, Zeit. f. Phys. u. Math. (2), III, 222-229 
1854, Ann. Chem. u. Pharm., XCI, 252 
1855, Ann. Chem. u. Pharm., XCVI, 243-246 
.|1867, Arch. Neerland, II, 376-384 
1g00, Meteoreisen-Studien, X, A. N. H., XV, 
87 
1873, Fest. Ges. Natur. Freunde, Berlin, 37 
1898, Meteoreisen-Studien, VIII, A. N. H., 
XIII, 153 
1874, A. J. S. (3), VII, 392 
1898, Meteoreisen-Studien, VIII, A. N. H., 
XIII, 118-158 
1872; A.°}. 5,, (3); 111,438 
1872, A. J. S. (3), LV, 495 
197 3;20 [oo (5), 9NG, 21 
1898, Meteoreisen-Studien, IX, A. N. H., 
XIII, 479-480 
‘1892, A. J. S. (3), XLIII, 425 
1904, Ber. Berlin Akad., 151 
