C. M. Warren on the Volatile Hydrocarbons. 93 
within the range of 80° to 175°C.; and probably having the 
general form ula C, Hy+. The first of these, which he found to 
boil constant at 80°, was proved to be identical with benzole, 
q,H,. « The second, boiling at about 113°, was determimed, 
from certain reactions, to be identical with toluole, Gs The 
special study of this body was deferred, however, with the re- 
mark that it had not yet been isolated in a sta te of sufficient pu- 
rity to claim an analysis. The third body, boiling at about 140° 
to 145°, was said to present all the characteristics of cumole 
oH, ; but this view was not fo unded ona careful study and 
mentioned, Mansfield also detected the presence of a 
more volatile than benzole, having an alliaceous odor, 
which he found to boil between 60° and 70°. Ritthausen* made 
re-examination of the light coal-tar naphtha, in order to obtain 
the hydrocarbons in a state of greater purity, and to prove the 
Sioetticce | of Mansfield’s view of the composition of this naph- 
tha. In regard to the results which he obtained, he says they 
a confirm those of Mansfield. Of the body which Mansfield 
robably identical with cymole, and of the oil 
more aS ie hots benzole, Ritthausen obtained quantities too 
to admit of investigation. In regard to the latter, how- 
ever, he remarks,’ that to Mansfield’s account he can t 
“its, nitro-product uite resembles that of ed and hence 
that at all events a tlate to the series C, perhaps 
has the formula C, ,H,.”" It is to be feotettiod ' that. Ritthausen 
* Journal vate raktische Chemie, 1854, lxi, 74. 
* “Teh Paral too Mansfield iiber das letztere nur das hinzufiigen, 
da seine Niroprodite den des Benzols, ete. ganz ahnlich sind, daher es jedenfalls 
i fe sper 6 angehort mhnod visll eicht die Formel C, H, besitzt. 
& future oosmtion Tahal! how thot Ritthaneca ie error in placing this 
body i benzole series, and indeed in considering it as hydrocarbon at all 
Hew edge wt evidently docatvid cannot eis on 8. inixture c ontning hone Farther- 
as Mansfield su might be 
* 
