Mineralogy and Petrography. 63 
METEoRITES.—J. Bosscha! describes a meteorite which fell at 
Karang-Modo, on the island Java, on the 3d of October, 1883. Its 
thin sections show well-crystallized chondra in addition to enstatite, 
olivine, troilite, iron and glass. After describing the structure of 
the meteorite in detail the author proceeds to discuss the various 
theories which have been proposed to account for the origin of 
these bodies. He shows the weakness of each, and immediately 
suggests a new one, in which meteorites are regarded as made up of 
little particles of cosmic substances, which together with the sun, 
planets, ete., compose the solar system. He shows how this sub- 
stance might unite and give rise to a meteorite with the brecci- 
ated structure so frequently noticed, and concludes by giving sey- 
eral reasons for the acceptance of his theory—A meteoric stone 
which fell at Angro des Reis, in Brazil, during 1867, contains a 
calcium-rich red augite as one of its constituents. It is conse- 
quently richer in calcium than any meteorite heretofore described. 
It belongs about midway between Rose’s eukrites and howardites. 
Ludwig and Tschermak? propose to establish a new class of mete- 
orites, of which this shall be the first member. They call it the 
augrite class.—A lithosiderite,? found last March ina field eight and 
a half miles west of Rockwood, Cumberland county, Tenn., con- 
_ sists of about 16 per cent. of metallic iron and 84 per cent. of a 
stony portion made up of anorthite and enstatite. The metallic 
grains are evenly distributed throughout the mass, and when pol- 
ished and etched show the usual figures. The stony part presents 
a brecciated appearance. Through it are scattered the metallic 
nodules mentioned above, and others consisting of an iron-rich 
enstatite. It is unfortunate that the careful analyses of the consti- 
tuent portions of this meteorite are unaccompanied by descriptions 
of its thin sections.—A meteoric stone having the composition given 
below is mentioned by Daubrée‘ as having fallen at Djati-Pengilon, 
in Java, on the 19th of March, 1884. Its specific gravity is 3.747. 
Weight, 166 kilograms. Composition :— 
Fe (Ni=10.78) Troilite. Olivine. Bronzite. Chromite. 
21.3 33.4 39.0 5 
account of the scarcity of material a complete chemical examina- 
tion was not attempted. A few tests, however, showed the presence 
, Neues Jahrb. f. Min., ete., Beil. Bd. v., 1887, p. 126. 
Min. u. Petrog. Mitth., viii., 1887, p. 341. 
x i., Nov., 1887, p. 387. J. E. Whitfield. 
i Comptes Rendus, civ., 1887, p. 
and 1813. 
