198 
PROCEEDINGS OF THE NATIONAL MUSEUM. 
For purposes of comparison, I give below the anal3^ses of the soluble 
and insoluble silicate portions of the Felix and Warrenton meteorites: 
CoiLstituent. 
Felix. 
Warrenton. 
Soluble 
silicates. 
Insoluble 
silicates. 
Soluble 
silicates. 
Insoluble 
silicates. 
Si0.i 
32.91 
2.73 
34.74 
0.94 
} 1.39 
6.43 
19.39 
0.11 
0.70 
53. 59 
6.97 
3.50 
33.02 
0.12 
37.57 
56! 90 
0.20 
10.20 
Al.,Oa . . . 
FeO 
MnO 
NiO 
4.33 
31.33 
0.34 
0.63 
f l.M 
1 0.31 
Trace. 
28.41 
CoO 
CaO 
7. 62 
22. 41 
MerO 
K..0 
Na..0 
0. 07 1 1. 00 
99.34 
100. 69 
101.04 98.33 
The dark color of the rock is undoubtedl}^ due to the carbon it con- 
tains, since the amount of iron and troilite, as shown b}^ the analyses, 
is extremely small. More than that, the finely pulverized rock, after 
having been subjected to prolonged digestion in hydrochloric acid and 
sodium carbonate solution, still shows minute black, amorphous, and 
opaque flakes distributed through it, which are presumably carbon in 
the form of graphite. The stone evidently belongs to Brezina's class 
oi Kugdcheyiehondrites ?in& to Isieume^v^i^ group of Ornajiites. It will 
be known as the Felix meteorite. 
I am indebted to Dr. F. Berwerth, of the k. k. Hof Museum at 
Vienna, for a fragment of the Lance meteorite for comparison, and 
to the Shepard collection for material for thin sections of the Warren 
County stone. 
EXPLANATION OF PLATES. 
Plate XIII. 
Figs. 1 and 2. Felix meteorite. The size is indicated by the centimeter rule below 
each figure. 
Plate XIV. 
Fig. 1 . Enstatite plates in ground mass. The black in this and in figs. 5 and 6 is a little 
too dense. It is intended to show the dark, irresolvable base. 
Fig. 2. Monosomatic enstatite chondrule with clear, colorless border. 
Fig. 3. Twinned augite. 
Figs. 4, 5, and 6. Colorless, granular, and cryptocrystalline areas of an undetermined 
mineralogieal nature, which it is thought may be of secondary origin. The 
actual size of the particles figured on this plate in no case exceeds 0.5 mm. 
