489 



The leaves, after steam distillation, had become quite red 

 in colour, resembling in this respect those of the ''Red 

 Mallee." The average yield of oil was Q'78 per cent. The 

 •crude oil was reddish in colour, due to the influence of iron 

 from the still acting on the phenol. The odour was that 

 given by oils belonging to the cineol-pinene class, and volatile 

 aldehydes were pronounced. No indication was given for the 

 aldehyde aromadendral. Phellandrene was not present. The 

 terpenes present were pinene and limonene, and probablv 

 cymene occurs also. A fairly large fraction was obtained 

 boiling- above 260° C, which consisted principally of a sesqui- 

 terpene. -The amount of esters was small. 



The crude oil had specific gravit}?- at 15° C.=0'8987; 

 rotation, a n + 9'2 c ; refractive index at 20° C. = 1'4711; and 

 required 1 volume of 80 per cent, alcohol to form a clear 

 solution. The saponification number for the esters and free 

 acids was 3*8. 



On rectification a few drops of acid water, together with 

 some aldehydes, came over below 165° C. (corr.). Between 

 165-172 : , 34 per cent, distilled; between 172-225°, 50 per 

 cent, came over, and between 225-276° 13 per cent, distilled. 

 These fractions gave the following results: — . 



First fraction 

 Second fraction 

 Third fraction 



Six gr. at 15° C. 



0-8815 

 0-8921 

 0-9365 



Rotation -<\jj 



lie!', index at 20°. 



+ 15-9° 



+ 5-8° 



Inactive 



1*4650 



1-4667 

 1-4964 



The cineol was determined by the resorcinol method in 

 the rectified oil and calculated for the crude oil. The result 

 -obtained with two closely-agreeing determinations showed that 

 ■32 per cent, of cineol was present in the crude oil. 



The Terpenes. 



When the cineol in the oil of the first two fractions was 

 -combined with phosphoric, acid in excess, the terpenes 

 separated from the thick jelly formed and could be poured 

 from the cineol phosphate. After agitating with 50 per cent. 

 Solution of resorcinol, the separated liquid, after well washing 

 and drying, had specific gravity at 15° =0*8641 ; rotation, 

 *d + 11-8°: refractive index at 20 b = l'4756. 



The oil was tinged yellow, and had an odour reminding 

 :somewhat of cymene, and was very mobile. The terpenes 

 were redistilled, when 50 per cent, came over between 157- 



