239 



is now placed under the n a i that it is identical with 



Tn-r " ,it rasmania for that was on ol Kookei Hi di cription accords with 1 p ulai 



I l" ntham' ■ n produi I in l lora Vu ; ii, p. 246), 1 qualh so, for it a the 



material in tin-. Museum obtained from the L'asmanian 1 ■■ Irb 1 or of Fo 



I'asmana acting under Mr. 1 Rodv direction. 



Mr. Irby states in this connection ["hi it local] exudation which How 



11 .11 i en. mi times of the year. This exudation appears to be just thi >ap of th< trei [01 by cutting thi bark the 

 sweet flavour maj !»■ tasted at any time. Where wounded the sap 1 xudi ind ci ; Hi il flows down 



side of the trei \X this time of thi 1 ' cider ' will only flow in small qu ol 1 Llected, 



1 was informed by local residents that to obtain it in any quantity it i try to tap th 1 pring 



ummer months. Like manna this exudation is of a very pleasing ftavoui and is rati 1 



quence. Opossum mely fond of il a also ai a birds. I am also informed that at certain times ol 



tin- year the wattle bird ippi 11 to almost live on it." 



ESSENTIAL OIL. Material for distillation was collected at [nterlaken, 

 rasmania. in May, r.912. The yield of oil from the leaves and terminal branchlets 

 was 0-39 per cent. Tlu' crude oil was dark-coloured, and had a terpene odour, 

 together with thai ol cineol. The chief constituents in tin oil ol this species 

 were dextro-rotatory pinene, laevo-rotatory phellandrene, cineol, a sesquiterpene, 

 and a small amount ol ester. The dextro-rotation of the higher-boihng portion 

 suggests the presence ol the liquid form of eudesmol. 



The crude oil had specific gravity at 15° C. = 0-9014; rotation a D + 1-5°; 

 refractive index at 20° = 1-4743, and was soluble in 4 volumes 80 per cent, alcohol. 

 On rectification, a small amount ol acid water and volatile aldehydes came 

 over below 165° C. con.. Between 165-173°, 30 per cent, distilled ; between 

 i" ; [98 , 52 per cent.; the thermometer then rose to 254 , and between --54 

 270 14 per cent, distilled. These tractions gave the following results:— 

 First traction, sp. gr. at 15 C. = 0-8813; rotation a„ + 5-4°; refractive 



index at 20 = 1-4671. 

 Second ,, ,, ,, = 0-8930; rotation a D 4-2 °; refractive 



index at 20° = 1-4677. 

 Third ,, ,, ,, = 0-0377; rotation </„ + 8-9°; refractive 



index at 20 = 1-5004. 

 The cineol was determined by the resorcinol method in the oil distilling 

 below [98°, and calculated for the crude oil; the result was 41 per cent. By 

 the rapid phosphoric acid method it was 26 per cent, when calculated 

 for the crude oil. 



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

 results of this investigation show the oil of this species to be distinct from that 

 of E. camphora of New South Wales. E. Guiiuii has no value as an oil-producing 

 tree; the yield is small, and the main constituents have no special value in the 

 amounts present. 



In March and April, 19 1 3, material for distillation was sent In Mr. L. (i Irhy 

 from Mount Kosciusko, N.S.W. Two consignments were forwarded, one consisting 

 ol mature lanceolate leaves and terminal branchlets only, the other of abnormal 

 leaves only. The idea was to see what differences, il any, were observable in 

 the oils obtained from the two forms of growth. 



The results indicate that the oil from the abnormal leaves contains rather 

 more dextro-rotatory pinene than does that from the mature leaves, thus following 

 apparently the general rule in this direction; otherwise the oils were in marked 

 agreement, and the results also in conformity with those ol the oil distilled from 

 materia] ol this species from Tasmania, as recorded above. The dextro-rotation 

 ol the higher boiling fra< tions is evidently due to thi' presence of the liquid form 

 of eudesmol, as no crystals could be detected with either sample. The 

 cineol was more abundant in the Tasmanian oil than in the other-, and in slightly 

 larger amount in the mature leaves OJ 'he New South Wale- material. The 



