130 : Scientific Intelligence. 
loyed as carriers; when the head of the beam was sifted out 
through a _— of alum, or when the beam was used without sift- 
That the amylic nitrite undergoes decomposition is proved 
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takes place in the atoms and not in the molecules. The author 
anticipates wide, if not entire, generality for the fact that a liquid 
and its vapor absorb the same rays. When the tube is filled with 
a rare and well mixed vapor, the electric light develops a blue color, 
which may be pure and deep or milky according to the intensity 
of the light. The author connects this result with those of Bricke 
on the colors of the sky. Various other liquids were tried 
success. In many cases the condensed vapors formed ng aru 
beautiful and ee shaped clouds, the apy Simo s: 
the axis of the tube, or round other 
forms appear t o have been those produeed by jodhyarie 8 ai 
Proc. of the Rove Society, xvii, 
4, On the carbonaceous matter - meteorites. —The anaiyesl ‘of | 
Wahler and Cloez have shown that certain meteorites contait 
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the oils of petroleum. This result fous x new analo ; 
the carbonaceous matter of meteorites and substances of organi¢ ft 
origin found upon the surface of the earth.— Compt es Rendus, 
w: Oo | 
Prof, Brush has called my attention to Mr. Henry’s paper: r, with — 
which I was not Soqnainted at the time of the publication of my 
own process for the estimation of manganese as pyrophosphate 
That full justice may be — Mr. Henry’s paper is by my request 
ec aie ma full—W. G 
On the separation of ‘Nickel ~ Cobalt from Manganests | 
byt ee, Esq., F.R.S.—The methods given by the be! f 
sutieeitiogfinthe separation of aay and cobalt from mang — 
e 
are either incon The on e€ : 
Pie rand Shag sper roel npx by sve 
esa pun but it is both tedious and unpleasant to pass | 
2 . penne ts tbe over r the irs: contained i a Pon eageet tray 2 j 
ashlee acid —. ae Py vera 
