118 Review of Dr. Antisell’s Work 
observers and Reichenbach, the reader may consult the general index 
[Namen-u. Sach-Register zu den = i i. bis lx, Leipzig, 1845] to Poggen- 
dorff’s Annalen der Physi sik u. Cher 
the same time that these deientific researches were in progress in Ger- 
many and Scotland, or even earlier, numerous practical efforts to manufacture 
oils from bitaininel ipoleaanee were made in France 
Although the precise date at which these experiments were commenced is 
somewhat obscure, it will not he difficult to trace rom a of the success- 
ful negra rece of thie industry to which they gav 
ttt ntisell, the a Chervan* bad a ‘patent, dated in 1824, 
for distilling sh nous substances, Blum and Moneuse,} in 1832, claim 
only the application of coal-oil 2 oe of lighting—not its nasal 
which they allude to as being well kno 
Subsequently th. October, 1833) Boicary$ obtained a patent for extracting 
pyrogenous oil from different substances, pepe ums, = and especially from 
the shales which occur i mrtties siaeit rons of Autun (Saone et Loire), and finally 
& om all the bituminous matters in vente. The oil, a is a rr 
nstead o -oil or resin, for gas-making—a aiciets better vas a that one 
po a from mits being thus obtained. 
In 1833, Laurent§ occupied himself with the investigation of various bitu- 
minous ence oth French and English, at the instance of the MM. Blum, 
whom he merttions as teil occupied with the distillation of oil a the shales 
of the enyboes of Autun.|| orbs gives the details of the pro employ 
by himself, telling us that the retort in which his shales were distilled i attained 
von luminous flame when pas in lamps furnished with suitable chim- 
pag db shows aninat that the oil contains paraffine, and does not contain 
nap 
Laurent subsequent y prota another ope upon this oh in which article 
he records his efforts to ttain what definite chemical compounds are con 
tained in the oil. One of the product aes by fractiosiel, distillation, Viz 
an oil boiling at 167° to 170°(C.) = o 338° F., he considers as identical 
with eupion 
In 1834, we find, for the first time, an article** describing the process 0 of 
Selligue, although it would appear from the statements of this chemist and 
. bj hf . 
a solid substance “pitting from the lat alled 
pret are tg pat om the latter, sak: sagecblones that called para 
* Brevets — Xviii, 232. : o 
+ Ibid. —o ¢ Ibid. Ixv. 250. 
Beused ing ~ "Enrent he had himself sepetes to a company, in 1829, t 
work these. shales, in order to extract the oil contained in them, and to employ it 
for lighting. 
7 sm es 1837, iv, 909; more fully in Annales de Chimie et de Phy® 
ique, xiv. 
*% Jacl dos Connaissances an Dec. 1834, p. 285; ee in Dingler’s Poly- 
“tt the 8 Se seg de i, 40, from which our extract ist is t sn neillt 
vertency o fe 
by Selligon 'y of con miding this body with tebe mng was subseq 
Se ae bide a ite Nee 
