202 F. R. MORRISON. 
small amounts of ester and an unidentified alcohol, to which — 
latter the characteristic fragrant odour of the oil is due. 
The Essential Oil. 
A total weight of 387 kilograms of leaves and terminal 
branchlets, cut as for commercial distillation, obtained 
from the localities enumerated, was submitted to distilla- 
tion with steam and gave an average percentage yield of 
oil of about 0°35, varying from 0°26 to 0°527%. The highest 
percentage yield was obtained from material collected at 
Waverley, on the sea-coast, the other localities being 
some distance therefrom. 
Experimental. 
The 387 kilograms of leaves and terminal branchlets gave 
on steam distillation crude oils possessing physical and 
chemical characteristics as follow :— 


Locality from \Weight of Specific : Refractive 
Date. which material | Leaves enone Gravity at po een Index at 
was obtained. Kilos. Bey, 15/15°C. g 20° C. 


27/1/1921 | Gore Hill | 154 | 0-26 | 0-9103|+4 18-6" 1-4902 
10/10/1921 | Waverley | 174 | 0-52 | 0-9112 | + 12-0°| 1-4893 
20/7/1922 Longueville 22 | 0°32 | 0-9087 | + 24-0°| 1-4837 
5/10/1922 Hornsby | 36 | 0-28 | 0-8917 | + 25-6°| 1-4801 
ition, hot 13 h.|tion, cold 2 h. 
V3°On 349-22 insoluble in 10 vols.; Brown oil. 
9:94 | 57°58 31:78 ‘insoluble in 10 vols.| Dark brown oil 
15°48 | 66°66 34°89 | soluble in 10 vols. | Light green oil 
13:56 | 39:19 15:57 ‘\insoluble in 10 vols | Light brown oil 





Solubility of Oil in 80% 
alcohol (by weight). | Colour of Oil. 
14 hours. 





The crude oils, on distillation, gave the following results: 
27/1/21, 32% distilled between 40—50° ©. at 10 mm.; 57 
between 50— 100°C. and 54% bet ween 100— 140°C. 10/10/21,. 
367 distilled below 185° C. at 762 mm. 
Determination of the Terpene.—The lower boiling frac- 
tion in each case was submitted to repeated distillation, 
over 80% distilling below 160° C. at 766 mm. It was found’ 
