of Chlorine and Carbon, Bc.» 341 
The crystals obtained by sublimation and from solutions of 
the substance in alcohol and ether, are dendritical, prismatic, or 
in plates; the varieties of form, which are very interesting, are 
easily ascertained, and result from a primitive octohedron. 
It volatilizes slowly at common temperatures, and passes, in 
the manner of camphor, towards the light. If warmed, it rises 
more rapidly, and then forms fine crystals: when the tempera- 
ture is further raised, it fuses at 320° Fahr. and boils at, 360° un- 
der atmospheric pressure. When condensed again from these 
rapid sublimations, it concretes in the upper part of the tube or 
vessel containing it, in so transparent and colourless a state, that 
it is difficult, except from its high refractive power, to perceive 
where it is lodged, As the crust it forms becomes thicker, it 
splits, and cracks like sublimed camphor; and in a few minutes 
after it is cold, is white, and nearly opaque. If the heat be 
raised still higher, as when the substance is passed through a 
red hot tube, it is decomposed, chlorine is evolved, and another 
chloride of carbon, which condenses into a fluid, is obtained. 
This shall be described presently. 
It is not readily combustible; when held in the flame of a 
spirit lamp, it burns with a red flame, emitting much smoke and 
acid fumes; but when removed from the lamp, combustion ceases. _ 
In the comt: istion that dees take place in the lamp, the hydro- 
gen of the alcohol, by combining with the chlorine of the com- 
pound, performs the most important part; nevertheless, when 
the substance is heated red in an atmosphere of pure oxygen, it 
sometimes burns with a brilliant light. 
It is not soluble in water at common temperatures; or only in 
very small quantity. When a drop or two of the alcoholic solu- 
tion is poured into a large quantity of water, it renders it turbid 
from the deposition of the substance. It does not appear that 
hot water dissolves more of it than cold water. 
It dissolves in alcoho] with facility, and in much greater quan- 
tity with heat than without. A saturated hot solution crystal- 
lizes as it cools, and the cold solution also gives crystals by spon- 
taneous evaporation. When poured into water, the chloride is 
precipitated, and falls to the bottom in flakes. If burnt, the 
flame of the alcohol is brightened by the presence of the sub- 
stance, and fumes of muriatic acid ave liberated. Solution of 
nitrate of silver does not produce any turbidness in it, unless it 
be in such quantity that the water throws down the substance ; 
but no chloride of silver is formed. 
It is much more soluble in ether than in alcoho], and more so 
in hot than in cold ether. The hot solution deposits crystals as it 
cools ; aud the crystallization of a cold solution, when evaporated 
on a glass plate, is very beautiful. This solution is not a 
tate 
