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



that his J i locally esteemed and apparent Iv .t tun I" i nl ! 1 1 ii .1 In • "i i it . l\i-\ . I. In For. I' lor. 



" the timber is red in i olout loi all) esteemed and apparently a timbi i o) .1 quality." Such qualitii s will no1 



apply to this spi 



from E. Calyx (i) in the foliage, which is alwaj et I ucous, (2) in the shape and size oi 



ives which are always smaller and less lanceolati than obtains in thai species and are oi uniform shape 



,!,,,, i both tUi earl] leaves and late, (3) in the venation the Intramarginal vein not being " a considerable 



:. <■ from tli mi- 01 I ■ Caleyi. Neither are the" veins prominent and wide apart." but arc 



indistinct and in some cases >o hidden as not to be di ■ rnible al ill, bul lost in the leaf material. (4) The 



flowers, stalks and peduncles are almost filiform, whilst tho e ol I . < aleyi are much stouter. (5) the operculum is 



from 1 he base oi the apex. 



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



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

 ol 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 a D + 12-7° ; 

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

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



On rectification, 1 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 had 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 D + 13°; refractive 



index at 20° = 1-4829. 

 The rectified portion ,, = 0-8979 ; rotation a D — 375°; 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. 



