188 PROCEEDINGS OP THE AMERICAN ACADEMY. 



amounting to 3.56 per cent. A determination of sulphur gave 0.10 per 

 cent. A combustion gave the following percentages of carbon and 

 hydrogen : — 



I. 0.1696 gram of the oil gave 0.5332 gram COo. The water was lost. 

 II. 0.1542 gram of the oil gave 0.4846 gram CO2, and 0.1912 gram H2O. 



This distillate was treated with a mixture of nitric and sulphuric acids, 

 then with fuming sulphuric acid. In the first treatment, a very small 

 quantity of a nitro compound separated as on oil, showing a trace of an 

 aromatic hydrocarbon. The fuming acid produced no appreciable action. 



A determination of carbon and hydrogen in this product gave the fol- 

 lowing results : — 



0.1618 gram of the oil gave 0.5019 gram CO2, and 0.2087 gram 11,0. 



Calculated for CnHjj. Found. 



C 85.71 85.47 



H 14.29 14.33 



A determination of the specific gravity of the oil after this treatment 

 gave 0.8333. Besides the very small projiortion of aromatic hydrocarbon 

 C„H2„_6, evidently this distillate is composed of a single body, although 

 analysis alone is not sufficient to determine whether its composition is 

 represented by the formula CnH^o or CinH24. 



Above 192°, no distillates collected in appreciable amounts below 210°. 

 At 212°-214° a larger quantity collected, evidently corresponding to a 

 hydrocarbon boiling at 216°, which has been found in other oils. A de- 

 termination of its specific gravity gave 0.8483. It absorbed bromine 

 equivalent to 4.29 per cent, and contained 0.04 per cent of sulphur. A 

 determination of carbon and hydrogen gave the following percentages : — 



0.1555 gram of the oil gave 0.4887 gram CO., and 0.1992 gram IlgO. 



Calculated for CjoH^^. Found. 



C 85.71 85.72 



H 14.29 14.23 



A small quantity of nitro product was formed, when this distillate was 

 treated with nitric and sulphuric acids, and fuming sulphuric acid then 



