212 



Cineol, phellandrene, and aromadendral were all detected. The cineol, determined 

 by the phosphoric acid method in the portion distilling below 183 C. (65 per 

 cent.), was 19-6 per cent., or about 12 per cent, in the crude oil. The specific 

 gravity of the crude oil = 0-8953, and the optical rotation a D - 14-5. 



Material of this species for distillation was also obtained from Condobolin, 

 N.S.W., in March, 1901. In appearance, odour, and constituents the oil differed 

 in no respect from the Albury and Hay samples. 



The above samples were mixed and stored in the dark, and in October, 

 1919, nineteen years afterwards, the oil was again analysed. But little altera- 

 tion had taken place during that period, although perhaps a slight increase in 

 cineol content had taken place, but the present determination was made by the 

 resorcinol method in the fractionated portion, arid then only indicated 20 per cent, 

 in the crude oil. 



On rectification 72 per cent, distilled below 190 C. The crude oil and 

 the fraction gave the following results : 



Crude oil, sp. gr. at 15 C. = 0-9040; iotation D 14; refractive 



index at 20 1-4830, 

 Large fraction ,, ,, = 0-8847; rotation a D 13-2; refractive 



index at 20 - 1-4773. 



The aromadendral was quite as pronounced as when the oils were 

 freshly distilled. 



Later, in June, 1911, leaves and terminal branchlets of this species for 

 distillation were collected at the Kingscote end of Kangaroo Isand, South 

 Australia. 



The yield of oil from this material was 0-38 per cent. Cineol was present, 

 but in small amount, and a small quantity of phellandrene was also detected ; 

 cymene was present in some quantity. The oil from this material gave results 

 which were in close agreement with those published in the first edition of this 

 work, and again recorded above. 



The crude oil of the Kangaroo Island E. rostrata had specific gravity at 

 15 C. = 0-9047; rotation D - - 12-4; refractive index at 20 = 1-4890, and 

 was soluble in one volume 80 per cent, alcohol. The saponification number for 

 the esters and free acid was 6-1. 



On rectification about 2 per cent, of acid water and some aldehydes came 

 over below 173 C. (corr.). Between 173-188, 51 per cent, distilled; between 

 188-255, 3 P er cent, came over, and between 255-272, 7 per cent, distilled. 

 These fractions gave the following results : 



First fraction, sp. gr. at 15 C. 0-8710; rotation a D - 7-5; refractive 



index at 20 = 1-4811. 

 Second ,, ,, = 0-9127; rotation a D -- 21.2; refractive 



index at 20 = 1-4929. 

 Third ,, ,, = 0-9333; rotation not taken; refractive 



index at 20 = 1-5040. 



The left rotation of the first fraction was partly due to the phellandrene, 

 while that of the second fraction was almost entirely owing to the aromadendral. 

 The high refractive index of the first fraction, taken in conjunction with the low 

 specific gravity, was evidently due to the influence of the cymene. 



