63 



The above sample was stored in the dark, and in December, igig, was 

 again analysed. Very little alteration had taken place during the twenty years 

 the oil had been kept. On distillation 85 per cent, came over below 190 C. 

 The crude oil and the rectified portion gave the following results : 



Crude oil, sp. gr. at 15 C. =- 0-9032; rotation a u - - 21-8; refractive index 



at 20 = 1-4719. 

 Rectified portion ,, ^0-8873; rotation a,,-- 22-15; refractive index 



at 20 = 1-4638. 



The cineol was determined by the resorcinol method in the rectified 

 portion. When calculated for the crude oil the result was 29 per cent. By the 

 rapid phosphoric acid method it was 21 per cent, when calculated for the crude 

 oil. 



23. Eucalyptus eugenioides. 



(Sieb... in PI. ENS., p. 479, and Fl. Mixt., p. 603 ; DC. Prod., iii, 218.) 

 While Stringybark. 



Systematic. A tall tree. Bark thick, stringy, of a clean, reddish colour, 

 or hoary on the external fibres. Abnormal leaves ovate, lanceolate, with 

 crenulate edges, scabrous, oblique, acuminate, on^a petiole of about J inch 

 long ; venation fine, lateral veins oblique, parallel, intramarginal vein removed 

 from the edge. Leaves of mature trees falcate, lanceolate, oblique, medium 

 size, often shining ; venation similar to that of the early leaves. Peduncles 

 axillary, very numerous at the base of the branchlets, compressed, with many 

 flowers. Calyx 2 to 3 lines long, tapering into a short pedicel; operculum 

 conical, obtuse, about as long as the calyx. 



Fruit. -Hemispherical, very shortly pedicellate or 

 sessile ; rim wide, red coloured ; valves not 

 exserted, or only slightly so ; about J inch 

 in diameter. 



In shape nearest to E. cap'tellata, liut smaller, and 

 only rarely compressed, as obtains in that species. They 

 are also not unlike E. Wilkinsoniana. Rim often a 

 little wider than shown in the figure. 



Habitat. Probably the most widely distributed species on 

 the coast and tableland of New South Wales, 

 Victoria, and Queensland. 



REMARKS. A tree very rarely known by any other vernacular name than that of " White Stringy- 

 bark." The buds and fruits are smaller than those of the other " Stringybarks," and these, together with 

 the timber, form the chief botanical demotions. Timber-getters and bushmen distinguish it from its 

 congeners by its timber, which has a great" Deputation for durability in the ground, and being fissile is in much 

 request for posts and rails. 



ESSENTIAL OIL. Leaves and terminal branchlets for distillation were 

 obtained from Canterbury, near Sydney, in June, 1898. The yield of oil was 

 0-7 per cent. The crude oil was almost colourless, of a light-lemon colour, and 



