175 
I 
Volume, j Pressure. 
Tempt. 
C. 
Volume at 
0°C 
and lm. 
Pressure. 
(1.) Original volume of Gras (moist) 
(2.) After addition of oxygen „ 
(3.) „ air 
(4.) „ explosion „ 
(5.) ,, absorption of carbonic I 
acid (dry) j 
183*48 0*1402 
333*41 j 0*3919 
567*52 0*5221 
505*38 j 0*4591 
447*58 j 0*4156 
8*5 
8*0 
8*5 
9*2 
12*3 
24*94 
! 127*00 
287*5 
224*7 
j 173*9 
Contraction observed 62*80 calculated 62*35 
Carbonic acid „ 50*80 „ 49*83 
Hydrogen in two volumes of gas found 6*076 calculated 6*000 
Carbon „ „ „ 2*036 „ 2*000 
This gas, treated with an equal volume of chlorine, was 
exposed to the diffused sun-light, after allowing time for 
the two gases to mix until nearly colourless, and completed 
by means of direct sun-light when quite colourless. The 
bottle was opened under warm water : the hydrochloric 
acid was absorbed equal to half the capacity of the bottle. 
The remainder of the gaseous contents not absorbed were 
displaced by warm water into a receiver, in which a few 
pieces of stick potash were placed, surrounded by a freezing 
mixture of salt and ice — a colourless, volatile liquid was 
condensed.* One hundred grammes of chloride were pre- 
pared by the repetition of this process. This first product 
was separated by distillation into two parts, one which 
distilled below 30° C., and the other above 30° C. On still 
further fractionating the first distillate, a portion was ob- 
tained boiling at 11—13° C„ whose Sp. Gr. was 0-9253 at 
0° C. Pierre found the specific gravity of ethyl chloride to 
be 0-9241 at the same temperature. 
The chloride boiling below 30° C. gave, on heating in 
* If the gas or the chlorine was not pure, being mixed with air, very little 
or no liquid was condensed, being carried off by the current. The same was 
observed by Mr. Schorlemmer. This will probably account for Frankland’s 
observation that no liquid was condensed at — 18° C. 
