2l>0 PROCEEDINGS OF THE AMERICAN ACADEMY. 



( )( TtiN U'll 1 INI . C 8 H 16 . 



After the twentieth distillation, 30 grms. collected at 118° -120°, 

 which, with no further purification than drying over sodium, gave 0.7615 

 a> its specific gravity at 20 , and, on analysis, values required for 

 octonaphtene : — 



0.14.37 grin, of the oil gave 0.45GG grm. C0 2 and 0.1922 grra. 11,0. 



C 85.47 



II 14.71 



After thorough treatment with fuming sulphuric acid the specific 

 gravity was reduced to <).75.'!2, at 20° (octonaphtene, 0.7582 at 17°. 5, 

 BeilsteiD and Kurbatoff), but the composition was scarcely changed : — 



I. ".1 171 grm. of the oil gave 0.4618 grm. CO, and 0.1895 grm. H.,0. 

 II. 0.1334 grm. of the oil gave 0.4185 grm. C0 2 and 0.1762 grm. ILO. 



After the eighteenth distillation, 25 grms. remained persistently at 

 124 -125 . which was not affected by fuming sulphuric acid in the cold, 



but at 100° the acid became colored and gave off much SO.,. On pour- 

 ing into water, the solution gave a peculiar odor resembling turpentine. 

 and a black powder separated that contained nitrogen. Analysis of the 

 distillate after the treatment with the acid gave values required for 



1 1 : — 



1391 grm. of the oil gave 0. 1354 grm. CO... and 0.1875 grm. 1LO. 



Required for <\,n._.„. Pound. 



C 85.70 85.36 



II 14.30 11-98 



Sine- no other hydrocarbon than normal octane has been recognized 

 with this boiling point, this distillate musl be a mixture of octonaphtene 

 with a higher body, but evidently normal octane is not present in appre- 

 ciable quantity. 



Nonon \ i-i 1 1 1 m . ( ',11 . 



A considerable quantity of distillate collected at 184°-185 , that gave 



Be gravity 0.8175. After purification with fuming Bulphuric 



