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Fietp CoLtumBian MusEuM—GEOLOGy, VOL, 1. 




icate W.-f. (W.) 
30 
AEROSIDERITES OR IRON METEORITES. 
Ronlrmen once NAME AND DESCRIPTION. in eee 
Found 1784. | Xiquipilco, Toluca, Mexico. 
24 Complete individual, spheroidal. Surface smooth 
and pitted. (W.) | 18,025 
25 Thin slab, etched. The W. f. are very distinct and 
regular. Nodules of troilite of various shapes 
areincluded. See Plate I, Fig. 1. (W.) 1,900 
26 Like previous specimen, but W. f. less distinct. 
~(W.) | 2,423 
20 Complete individual, crescentic in form. Shows 
strong tendency to scaling and decomposition. 
Drops of lawrencite appear on the surface. 
(W.) | 19,954 
1370 *Section of flattened individual with etched surface. 
The latter shows coarse, well marked W. f. and 
several irregular nodules of troilite. Natural 
surface deeply pitted. (W.) | 4,585 
371 *Full-sized slab, etched. Shows the usual W. f. 
and coarse, vein-like masses of troilite. (W.) 792 
372 *Complete individual showing pittings and natural 
surface. Form pyramidal. (W.) 2,506 
Found 1784. | IxtIhuaca, Toluca, Mexico. 
18 Complete individual. Surface pitted and covered 
with crust. (K.) 3.000 
19 Scalings from previous specimen. (K.) GO 
Found 1792. | Zacatecas, Mexico. 
28 Thin fragment, etched. No W i. (W.) 5.7 | 
Found 1793. | Cape of Good Hope, Africa. 
29 Polished slab of brilliant nickel-white color. (W.) 27 
_ | Found 1802. | Albacher [uhle, Bitburg, Rhenish Prussia. 
30 Polished slab Shows large pores and slag-like 
surface, due to its having been passed through 
a furnace. (W.) 70 
31 *Fragment, three sides polished. The natural sur- 
face appears to be altering to limonite. (W.) i fee 
> | known 1804.) Misteca, Oaxaca, Mexico. 
32 Porous slab, etched. W. f. quite distinct. 
(W.) 86 
Known 1804. | Charcas, San Luis Potosi, Mexico. 
33 Thin slab, etched. Well marked W. f. (W.) 62 
Found 1808. | Cross Timbers, Red River, Texas. 
34 Chiseled fragment, one end etched. W. f. well 
brought out. (W.) 59 
Found 1814. | Lenarto, Saros, Hungary. 
| 385 Square slab showing crust on one side and one 
| etched surface. No W. f. (W.) 47 
Found before 
1819. Burlington, Otsego Co., New York. 
36 Triangular slab, etchedon one surface. Very del- 39 
