109 
terior of the crystal. This mineral, being opaque, cannot decompose 
isk, though it actively disperses it. These properties of hardness and 
1s carbon 96:8, volatile matter 1:0, ash 2°2—100. Méne also states that 
the coke produced from a mixture of the Creuzot anthracite with the St. 
bituminous, contains a multitude of brilliant points which read- 
glass.— Comptes Rendus, Ixiv, 547 and 674; Les Mondes, Apr. 
10. On the origin of meteorites—In his researches on diffusion, Gra- 
44M has shown that certain metals, such as iron, platinum, and gold, 
y 
88 has passed, may be determined. The well known Lenarto meteor- 
me is admirably adapted for such an experiment, being very pure and 
— piece 50 millimeters long, 13 wide and 10 thick, was cut from 
mass, cleansed and placed in a porcelain tube connected with a Spren- 
“ aspirator. The tube was then eadad in an ordinary combustion fur- 
hace by ignited charcoal. Gas was freely evolved, which in 24 hours 
‘mounted to 16-53 cubic centimeters. This gas burned like hydrogen, 
and when analyzed gave 85°68 hydrogen, 4°46 carbonic oxyd, 9°86 mi- 
; 00. As the vol : 
re. But the m me 
= this quantity. Hence am infers that it must have 
Sniginated beyond the limite of the light cometary matter of our solar 
‘sem.— Chem, News, May 31, 1867. oe 
ca 
et. 
ge 
® 
a 
= 
a 
e 
B 
2 
& 
