258 Review of Dr. Antisell’s Work 
George Michiels.* It is ponstionly: interesting since a portion of sy Ropiirs to 
the preparation of oils from caking coals. Mi chiels proposes in fact to prepare 
coke from bituminous coals, and Baan mixtures of such coals with ‘sntbnualg 
i wit. i 
f six nto 
_ tus and other gto The retorts are then heated as if it were intended 
to produce gas, with this difference, that the temperature for the first fifly 
hours should not coe nascent red heat, or 964° F.; after that time it should 
be increased progressively until it attains a clear red heat, which would be 
about the ninety-sixth hour, I should remark, continues Michiels, that about 
e sixtieth hou on 
th hour I shut unication betw e retort and the 
condensor by closing the hydraulic valves, and at the same time th 
valve on top of the r , &C., § oO e air to enter, which burns the 
useful purposes, cop is suitable for his principle object of turning into gas. 
Further on (p. 15 of his specificatio aia hiels orp iiaaa that this oil's well 
adapted for. ate eit ng. gas upon a small scale, since the gas s prepared 
from it requires no purification, ~ since it can be used in any of the ordinary 
apparatus for making gas from camphene, oil, or ee Tn a wor the: 
posed using it just as rosin oil ds is ve so largely employed by private ga 
works fae this country, or as Boscary and Butler had used the same coal-oil 
We passt toa erga of the well known labors of Mr. James Young 
of Glasgow.t From evidence brought forward in the trial already eke it 
appears that Mr. Cowie attention was called in 1847 to a mineral oil 
i i i hire. 
in Tnplaed oo in this country, which was intr roe 9 to tele notice 1n 1850. 
From this substance Young was enabled to phe a much lar, ount of oil 
per ton of mineral than had hes obtained by any of his pr abee ors A 
discovery of the source of an admi w material which the Boghe 
mine furnished is evidently due the immense increase in the production, and 
ourse, tion, of coal-oil which im e 
say, more than to anything else is to be attributed the rise and progress, during 
the past few years, of the almo sae 1 ori oal-oil on the 
continent of Europe and in our own ¢ n the impetus thus given, ® 
y ae 
Fro 
branch of industry ich had long be na aacemnine speaking, of onl ae 
importance soon attained an enormous ny ire meat 
paeemee 
* Granted April 30, 1850. a No. 13,066 of the English Patent Office. 
h + Making no pretence, be it understood, a “$ ‘have been able to collect all that 
as been published upon the = none Satees 
Patent dated ay 
eh a eh ie @ see , London Journal of Gas Lighting, iii, ok ks 
cannot, in this connection, forbear noc the spaces ertine - d ony 
from Lord Campbell's charge to the jury in the ee eg ® White = 
te 
rings me to an Leeann’ hi dship, “which I mean nt 1 
poe and which, T should have ong y if r" a forgotton, 5 which is this—tbat t 
qwas the discove ery of this Boghead oa Wat % seems to have given t the great ¥ value 
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