DE. E. EEAJS^KLAND’S EESEAECHES ON OEGANO-METALLIC BODIES. 
65 
Submitted to eudiometrical analysis the following data were obtained : — 
I. Temp. 
Pressure of gas used (dry) 200'9 mm. 3°-6 C. 
Pressm’e after action of fuming sulphuric acid (dry) 200-9 3° -6 
II. 
Pressm’e of gas used (dry) 20-0 mm. 3°-5 
Pressm’e after admission of oxygen (dry) . . . . 267-6 3°-5 
Pressme after explosion (dry) 217-9 3°-5 
Pressm’e after absorption of carbonic acid (dry) . . 177’7 3°-5 
Pressm’e after admission of hydrogen (dry) . . . 845-6 3°-5 
Pressm-e after explosion 312-2 3°-5 
These numbers prove that neither nitrogen nor any member of the olefiant gas family 
is present ; they also prove that one volume of the combustible gas consumed almost 
exactly volumes of oxygen and generated two volumes of carbonic acid, as seen by the 
following proportions : — 
Vol. of combustible gas. 
Vol. of oxygen consumed. 
Vol. of COg generated. 
20-0 : 
69-9 
: 40-2 
1 : 
3-495 
: 2-01 
These are exactly the results obtained by the combustion of hydride of ethyl, one 
volume of which consumes 3^ volumes of oxygen and generates two volumes of carbonic 
acid. This result is also confii-med by the determination of the specific gravity of the 
gas, for the theoretical specific gravity of hydride of ethyl is 1-03652, which agrees very 
nearly with the number obtained in the above determination. 
On submitting the milky solution, formed by the decomposition of dinitroethylate of 
zinc and zincethyl in water, to a stream of carbonic acid, a copious precipitate of car- 
bonate of zinc, free fi’om organic matter, was thrown down ; the liquid was then heated 
to boiling and filtered. The filtrate, evaporated almost to di-yness in a water-bath, yielded 
a white radiated crystalline mass, which, after being reduced to powder, pressed between 
blotting-paper, and diied over sulphui’ic acid, was submitted to analysis and yielded the 
following results : — 
I. -9042 grm., exposed to a current of dry air at ordinary temperatures and afterwards 
at 100° C., at which temperature it fused, lost -0360 grm. water. 
II. -2843 grm., burnt with oxide of copper with the usual precautions, gave -1963 grm. 
carbonic acid and '1180 grm. water. 
III. -3540 grm. gave '2410 grm. carbonic acid and -1518 grm. water. 
IV. -2785 grm., dissolved in water, treated -with nitric acid and afterwards ignited, gave 
-0910 grm. oxide of zinc. 
V. '3074 grm., similarly treated, gave -0975 grm. oxide of zinc. 
VI. -2577 grm., similarly treated, gave *0825 grm. oxide of zinc. 
