sulfite method of Sadtler and Burgess, 1 showed the 

 total aldehyde content of the oil to be 6 per cent of 

 the total volume. 



PINENE After the removal of the Aldehydes the 

 remainder of fractions i, 2 and 3 was combined with 

 fraction 4 and redistilled. The fraction distilling at 

 156-157 constituted approximately 20 per cent of the 

 original volume of the oil and the following constants 

 would seem to indicate that it was practically pure 

 pinene. 



A quantitative analysis for pinene was also made on 

 the crude oil as follows: a weighed portion of the oil 

 was fractionated and the fraction boiling at 130176 

 retained; 5 cc. of the oil in this fraction were placed 

 in a cassia flask and 50 per cent resorcinol solution was 

 added to take up all the cineol and traces of aldehydes 



Burgess. Analyst, 29 (1904), 78 



2 See Burke and Scalione, THIS JOURNAL, 6 (1914), 804. 



(4) 



