REPORT ON CHEMISTRY. 
527 
bases already mentioned, ammolin, and a portion of empyreu- 
matic oil: the last is separated by long boiling, during which it 
is either volatilized or converted into a brown resinous matter. 
A fortieth part of nitric acid is now added to the brown solu¬ 
tion, and the whole evaporated to one fourth : this is again di¬ 
luted, nearly saturated with carbonate of soda, and distilled so 
long as what passes over smells of odorin or animin ; the residue 
is a mixture of sulphates of ammonia, soda, and ammolin. The 
sulphuric acid is completely saturated by carbonate of soda, and 
evaporated : the carbonate of ammonia flies off, and a brown oil 
separates, which by distillation gives ammolin. It is a colour¬ 
less oily body, heavier than water, more powerfully alkaline than 
any of the other bases above described, expelling ammonia from 
its salts at a boiling temperature, dissolves in 40 boiling and 200 
cold water, is volatilized in very small quantity by boiling in 
water, and dissolves in all proportions in alcohol and aether. It 
is decomposed by chlorine. 
These substances form salts with the acids, most of which have 
an oily appearance. With the chlorides of gold and platina the 
muriate of odorin forms double salts in beautiful yellow crystals. 
The muriate of animin gives a similar crystallizable salt with 
chloride of platina. 
Paraffin and Eupion .—It has already been mentioned that 
Reichenbach had discovered two remarkable substances, Pa¬ 
raffin and Eupion, in the products of the destructive distillation 
of vegetable substances. He has since found that they may be 
obtained also from the products of the distillation of animal 
substances, the paraffin being less, and the eupion more abun¬ 
dant in the latter case. 
The train of research in which he was engaged led Reichen¬ 
bach to investigate the basic substances of Unverdorben ; but 
he did not succeed in obtaining anything which resembled any 
one of them: he therefore infers that they do not exist. It is 
probable that circumstances not stated by Unverdorben may 
have influenced their production ; for that he did produce them 
is certain, as I have seen in the possession of Berzelius speci¬ 
mens of them sent to him by the discoverer. 
The following List contains nearly all the animal principles 
with which we are yet acquainted. 
