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appears that like ammonia they give ordinary chloroform, when one 
of the radicals is hydrogen, the compound radical entering the chlora- 
cetamide. Thus the decomposition with aniline is as follows : — 
(C 12 H 5 )H 2 N + C 6 Cl e 0 2 = C 4 C1 3 0 2 NH(C 12 H 5 ) + C 2 HC1 3 
Aniline. Hexaclilor Ac. TricMoracetanilide. Chloroform. 
The change occurs in the cold. Trichloracetanilide crystalises in 
colourless prisms of some size. It is insoluble, or very sparingly 
soluble, in cold water, but dissolves in warm water pretty readily, 
filling the liquid with silky needles as the solution cools. I expected 
that, like chloracetamide, it would sublime without decomposition, 
which it partly did ; but there is a great loss, and much charcoal is 
left. I had barely enough left to ascertain by experiment its 
exact composition, and the analysis of the sublimed substance gave 
an excess both in carbon and hydrogen, but the method of forma- 
tion and its properties leave no doubt about the formula. As I 
intend to continue the subject, I shall probably have an opportunity 
of publishing an exact analysis. When rapidly distilled with strong 
solution of potass, or with soda lime, there is formed besides aniline 
a new volatile base, with a very peculiar pungent odour. This body 
seems rather easily decomposed, but I had far too little to be able 
to give a particular account of it at present. 
When the oil is mixed with a base containing a triatomic radical, 
such as lutidine, no chloroform is evolved. The liquids mix, but 
there is no apparent action in the cold, and when heat is applied, 
the decomposition is so violent that only a charcoal-like residue is left. 
The summer being the only season when the oil can be conveni- 
ently prepared, by Plantmour’s process, I have made some experi- 
ments with a view to find other methods of procuring it, which I may 
mention here. Staedeler found that chlorinated acetones were pro- 
cured by distilling citric acid with chlorate of potass and hydrochloric 
acid. The oil which I procured in this way had a specific gravity 
of 1*726, and boiled between 360° and 400° F. It was evidently 
a mixture of his pentachlorinated and hexachlorinated acetone. It 
is extremely irritating, causing great pain in the eyes, and can 
scarcely be distilled except with special arrangement for carry- 
ing off the vapours. I procured by a few distillations a portion of 
