REPORT ON CHEMISTRY. 
439 
go f Oil of bitter almonds. 114C + 6H + 2O.—Wohler 
\ Camphor deposited in do. J and Liebig. 
/ Asparagine. 
L Aspartate of ammonia. 
' Urea.2N + 2C + 4H + 20 
Cyanate of ammonia withd 
an atom water.j * 
5 ° 
. . Cy + N+3H + H. 
III. Polymeric Substances . 
1. Paraffin *. 2 C -f 2 II 
Olefiant gas. 2 C + 2H 
Trito-carbo-hydrogen (if it exist).3C + 3H 
Oil of wine.4C + 4H 
Faraday’s volatile liquid carbo-hydrogen . . . . 4 C + 4 H 
2. Oil of lemons. 
Oil of turpentine. >10 C-j-8 H .-—Dumas. 
Camphogene f. J 
3. Cyanogen. 
Black substance left when the cyanide of mercury is de¬ 
composed by heat. J 
4. Arabine and cerasine = 6C + 5H + 5 O.—Guerin. 
~ rPhosphoric and paraphosphoric acids. 
\Metaphosphoric acid. 
From the analyses of Dr. Prout it appears also that cane 
sugar, diabetes sugar, and lignin, are nearly identical in com¬ 
position; while, according to the same chemist, gum-arabic, 
sugar of milk, and manna, differ no more from those three 
substances than different kinds of cane sugar do from each 
other. These results have led him to adopt some peculiar 
hypothetical views § in regard to the composition of organized 
bodies. 
of both substances. Opperman lately found naphthaline to be C 3 H 2 , so that 
there is still considerable doubt as to the metameric nature of these two sub¬ 
stances. 
* This remarkable substance is composed, according to the analysis of Jules 
Gay-Lussac, of carbon 85*22, hydrogen 14*98,—the same composition as olefiant 
gas ; but we have as yet no means of knowing its atomic weight. 
f Dumas thus names (Annales de Chimie, 1. p. 225,) the liquid carbo-hydrogen 
of Opperman, the base of the artificial, and as Dumas thinks also of common 
camphor. Opperman however gives for the composition of his liquid 12 C-f9 H. 
X I insert this as a modification of cyanogen on the faith of my early ex¬ 
periments. Some facts however, communicated to me by MM. Liebig and 
Wohler, seem to indicate that the subject requires further investigation. 
§ For a summary of Dr. Prout’s views on this subject, see Dr. Daubeny’s 
Introduction to the Atomic Theory. 
