6 



separating fuunel and the oil dried "by sodium 

 sulphate. The first fraction after "being so 

 treated was clear and colorless, with the same 

 odor as that of the original oil but more del- 

 icate evidently a terpene hydrocarbon. The se- 

 cond fraction had a light yellow green tinge, 

 the two following a deeper color. After four 

 fractions had "been collected, the oil ceased to 

 co-iie over with the water and distillation was 

 stopped. 



Fractionation--The first fraction was dis- 

 tilled again from a 20cc flask. (There was not 

 enough to use a Hempel column.) The oil distilled 

 almost completely at 157--160. With about Ice re- 

 maining the thermometer rose above 162 and the 

 residue turned greenish yellow. The flame was re- 

 moved at this point. Ho carbonization or decom- 

 position was evident from the appearance or odor 

 of the residue. 



The second, third, and fourth fractions 

 from the steam distillation were distilled a- 

 gain. The distillate was collected as the first 

 fraction to 160, the second to 1650. The tem- 

 perature then rose rapidly to 190 at which 

 most of the remainder passed over. This fraction 



