256 



On rectification, 2 per cent, distilled below 161 C. (corr.). Between 

 161-172, 42 per cent, distilled; between 172-233, 20 per cent, came over, and 

 between 233-286, 22 per cent, distilled. These fractions gave the following 

 results : 



First fraction, sp. gr. at 15 C. = 0-8621 ; rotation D + 2-8. 



Second ,, ,, =0-8761; ,, -10-9. 



Third ,, =0-9536; not taken. 



Material for distillation was also obtained from Delegate Mountain, 

 N.S.W., in February, 1899. The oil was in agreement with the above in colour, 

 odour, and constituents ; consisting largely of pinene, phellandrene, and ses- 

 quiterpene, with some eudesmol. The excess of phellandrene over the pinene 

 at this time of the year, caused the oil to have a higher laevo-rotation, and it 

 had, perhaps, a corresponding decrease in cineol. The eudesmol was present 

 in about the same amount as in the oil from Monga, the fraction crystallising 

 solid soon after distillation. There was but little difference in the two oils, either 

 in distillation figures or in other characters, beyond the increase in phellandrene. 



The crude oil had specific gravity at 15 C. = 0-8925 ; and was insoluble 

 in 10 volumes 80 per cent, alcohol. The saponification number was 12-4. 



First fraction, sp. gr. at 15 C. = 0.8614 ; rotation D 9-5. 



Second ,, =0-8717; a D 24-6. 



Third = 0-9545 ; not taken. 



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



August, 1919, the oil was again analysed. Very little alteration had taken place 



during the twenty years it had been kept, and 70 per cent, distilled below 190 C. 



The crude oil had sp. gr. at 15 C. = 0-8980 ; rotation not taken ; refractive 



index at 20 = 1-4805. 

 Rectified portion ,, ,, =0-8668; rotation a -- 10-3; refractive 



index at 20 = 1-4705. 



The cineol was determined by the resorcinol method in the rectified portion ; 

 when calculated for the crude oil the result was 10 per cent, 



138. Eucalyptus fraxinoides. 



(H.D. & J.H.M., Proc. Linn. Soc., N.S.W., 1898, p. 413, t. XIX.) 

 White Ash. 



Systematic. A tall tree, bark rough half-way up the trunk, and sometimes 

 the upper part, outer layer falling off in ribbons, the bark blotched. Abnormal 

 leaves alternate, varying from bluntly lanceolate to almost linear-lanceolate, 

 slightly falcate. Normal leaves lanceolate, often falcate, acuminate, sub-coriaceous, 

 averaging 3 inches in length ; intramarginal vein somewhat removed from the 

 edge, lateral veins oblique. Buds ovoid when young; as growth proceeds 



