303 
ORIGINAL COMMUNICATIONS. 
hydrochloric acid gas, which was formed by the union of 
chlorine with the hydrogen of the oil. The resulting liquid 
had a yellow colour, owing to the presence of free chlorine, 
which, upon the application of heat, regained its colourless 
appearance. This compound has a very irritating odour, 
affects the eyes, and has a very pungent taste. It is readily 
soluble in alcohol and ether, and its density is between 1.9 
and 2. Its boiling point is quite elevated. 
If, when this compound is at its boiling point, small pieces 
of sulphur be dropped into it, they continue to be dissolved 
until one-fourth of the weight of the liquid is taken up. Upon 
cooling, the sulphur is deposited in minute crystals. During 
the action of chlorine on hyduret of benzule, if the absorbtion 
be allowed to go on to saturation, a deep yellow coloured 
liquid results, which, after standing some hours free from 
exposure, becomes a mass of acicular crystals of the same 
colour. These fume powerfully on exposure, irritate the nose 
and eyes. Whether this article is a new compound, — say a 
bichloride, or whether it is simply a mixture of the chloride 
and chlorine, remains to be determined. 
Experiment 6. — A portion of bromine w^as added to hy- 
duret of benzule, contained in a glass vessel. The temperature 
of the mixture increased, and combination was effected. 
By the application of heat, the free bromine and hydrobro- 
mic acid formed by the union of bromine with the hydrogen 
of the hyduret, were driven off; and the liquid, which was of 
a brown colour, became a mass of foliated crystals on cooling. 
This compound has a peculiar odour, different from either 
of its constituents, a rank pungent taste, soluble in alcohol 
and ether, and deposited in crystals from its solutions by 
evaporation. 
Experiment 7. — A portion of chloride of benzule was 
introduced into a tube retort, and an equivalent quantity of 
iodide of potassium mixed with it. On heat being applied, a 
brown liquid passed over into the receiver, which became 
solid by standing. When deprived of free iodine, (according 
to LiEBiG and Wohler,) it is colourless. This compound has 
a hot burning taste, a peculiar odour, and dissolves readily 
