272 



to any tree of that group is the fruit which may be said to match somewhat those of E. sideroxylon. Mr. Maiden 

 states that his E. Calyi "is locally esteemed and apparently a timber of good quality " (Crit. Rev.). In For. Flor. 

 " the timber is red in colour, locally esteemed and apparently a timber of good quality." Such qualities will not 

 apply to this species. 



It differs from E. Calyi (i) in the foliage, which is always very glaucous, (2) in the shape and size of 

 the leaves, which are always smaller and less lanceolate than obtains in that species and are of uniform shape 

 throughout both the early leaves and late, (3) in the venation, the intramarginal vein not being " a considerable 

 distance from the edge" as obtains in E. Caleyi. Neither are the " veins prominent and wide apart," but are 

 indistinct, and in some cases so hidden as not to be discernible at all, but lost in the leaf material. (4) The 

 flowers, stalks, and peduncles are almost filiform, whilst those of E. Caleyi are much stouter, (5) the operculum is 

 acuminate, almost from the base of the apex. 



The fruits more closely approach those of E. melanophloia and E. Fergiisoni. 



In botanical sequence it perhaps should be placed next to E. melanophloia, as the fruits, and glaucousness 

 of the leaves, buds, and fruits, and the dark, deeply furrowed bark give it some affinity to that species. 



ESSENTIAL OIL. Leaves and terminal branchlets for distillation were 

 obtained from Murrumbo, N.S.W., in October, 1900. The yield of oil was 0-4 

 per cent. The crude oil was dark amber-coloured, and had a turpentine-like 

 odour. Phellandrene was present in some quantity, and pinene also detected. 

 Cineol was also present, about 20 per cent, in the crude oil. The third fraction 

 consisted largely of the sesquiterpene. The crude oil and the third fraction were 

 both dextro-rotatory, while the first and second fractions were laevo-rotatory. 

 This was due to the presence of the liquid form of eudesmol, which is dextro- 

 rotatory, it was present in considerable quantity, and thus overcame the laevo- 

 rotation of the phellandrene. The liquid form of eudesmol appears to be the 

 more stable, and occurs in the oils of many species in which crystals have not so 

 far been detected. 



The crude oil had specific gravity at 15 C. = 0-9158 ; rotation D + 12-7 ; 

 refractive index at 20 = 1-4827, and was soluble in i volume 80 per cent, alcohol. 

 The saponification number for the esters and free acid was 6-4. 



On rectification, i per cent, distilled below 163 C. (corr.). Between 

 163-183, 61 per cent, distilled; between 183-244, 9 per cent, came over, and 

 between 244-275, 25 per cent, distilled. These fractions gave the following 

 results : 



First fraction, sp. gr. at 15 C. = 0-8954; rotation a D - 5-4. 

 Second ,, = 0-9032; ,, 5-1. 



Third = 0-9463; + 24-4. 



The cineol, determined by the phosphoric acid method in the first fraction, 

 was 26 per cent., indicating about 17 per cent, in the crude oil (O.M.). 



The oil of this Eucalypt has little resemblance to that of E. sideroxylon. 



This sample of oil had been stored in the dark, and in August, 1919, was 

 again analysed. Scarcely any alteration had taken place in general character 

 and constituents during the nineteen years it h?.d been kept, except that the 

 specific gravity had increased a little, and the rotation of the phellandrene slightly 

 diminished. No deposit had formed, so that the constituents were stable. 60 per 

 cent, distilled below 190 C. 



The crude oil had sp. gr. at 15 C. = 0-9204; rotation a c + 13; refractive 



index at 20 = 1-4829. 

 The rectified portion ,, = 0-8979; rotation D -- 3-75 ; refractive 



index at 20 = 1-4662. 



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

 the result was 31 per cent, in the crude oil. By the phosphoric acid method 

 it was 20 per cent., when calculated for the original oil. 



A portion was acetylated, when the saponification number had increased to 

 54-2; in the cold with two hours' contact, it was 22-2. This result indicates 

 about 10 per cent, free eudesmol, and 6 per cent, free geraniol. 



