A. W. Wright—Gases from the Meteorite of Feb. 12,1875. 459 
The number of discharges was closely proportional to the 
diameter of the circular disks, or to their circumferences. The 
Art. LIL— Preliminary Note on an Examination of Gases from 
the Meteorite of February 12, 1875; by AntHuR W. WRIGHT. 
By the courtesy of President Thacher, of the State Univer- 
sity of Iowa, the writer has received some fragments of this 
ng. numerous small grains of metallic iron, and not greatly 
differing in appearance from others of its class. 
quantity of the iron, having been separated, was found to 
contain several times its volume of gaseous substances, much 
of which it yielded on a very moderate elevation of tempera- 
ture. The spectroscope plainly indicated the predominance of 
carbon compounds, and an analysis showed that very nearly 
one half the gas was made up of the two oxides of that ele- 
ment, the approximate a being ; CO,, 35; CO, 14; 
the two together, 49 per cent. The residue consisted largely 
of hydrogen, but the exact proportion was not determined. 
These relations show a are difference between the iron and 
Am. Jour. Sor. THIRD a TX, No. 54.—Jung, 1875. 
