-'M 



members oi the 'Mountain Asli " group oi Eucalypts, but in its general 

 characters more closely approaches, perhaps, thai oi E. oreades than any of the 

 others. The following results were obtained with the crude oil :— 



0-85. 

 0-8804. 



— 25-8°. 



1-4847- 

 The saponification 



\ ield of oil per cent , 

 Specific gravity at 15 C. ... 



Rotation a ly 



Refractive index at 20 C. ... 

 Scarcely soluble in 10 volumes 80 per cent, alcohol 

 number for the esters and free acid was 7-6. 



On rectification, 1 per cent, distilled below 175" C. corr.). Between 175- 

 188 , 68 per cent, distilled ; between 188-224 , 11 per cent, came over, and between 

 224-265 , 11 per cent, distilled. These fractions gave the following results :— 

 First fraction, sp. gr. at 15 C. = 0-8589; rotation a D - - 34-8°; refractive 



index at 20 = 1-4803. 

 Second ,, ,, ,, = 0-8714; rotation a D - 32-6°; refractive 



index at 20° = 1-4826. 

 Third ,, ,, ,, = 0-9224; rotation not taken; refractive 



index at 20 = 1-4980. 

 The phellandrene in the oil of this species has a less k-evo-rotation 

 than is the case with such species as E. dives, E. radiata, &c, so that the 

 influence of the dextro-rotatory modification is assumed. 



The results obtained with the oil of this species were published by us 

 in the Proc. Roy. Soc, N.S.W., November, 1911. 



Plate LXXIII 



EUCALYPTUS OREADES. RTB 

 Rocky Towers Hazelbrook, New South Wales. 



