Si 



The crude oil was of a dark amber colour, and had an odour similar to 

 those of pinene-cineol oils generally. Volatile aldehydes were pronounced. The 

 pinene was dextro-rotatory, and phellandrene was absent. Cineol was present 

 in fair amount. Esters were in small quaniity, but those present were high-boiling. 

 A small amount of the sesquiterpene was also present. 



The crude oil had specific gravity at 15 C. = 0.9068; rotation a D + IO'I, 

 refractive index at 20 = 1-4695, and was soluble in i volume 80 per cent, alcohol. 

 The saponirieation number for the esters and tree acid was 3-2. 



On rectification I per cent, distilled below 162 C. (corr.). Between 162- 

 172, 50 per cent, distilled; between 172-193, 30 per cent, came over, leaving 

 1 9 per cent, boiling above 193. The two fractions and the residue gave the 

 following results : 



First fraction, sp. gr. at 15 C. = 0-8940; rotation + 15-7; refractive 



index at 20 = 1-4633. 

 Second ,, ,, = 0-9082; rotation a D + 7-6; refractive 



index at 20 = 1-4648. 

 Residue ,, ,, = 0.9409; rotation too dark; refractive 



index at 20 = 1-4905. 



The cineol was determined by the resorcinol method in the portion dis- 

 tilling between 162-193 ; when calculated for the crude oil, the result was 45 per 

 cent. A determination by the rapid phosphoric acid method gave 38 per cent. 

 The saponification number for the residue was 11-3, and in the cold with 

 two hours' contact it was 8-3. 



The phenols were removed in the ordinary way ; they were liquid and 

 gave the reaction for tasmanol. The amount of phenols present in the crude oil 

 was 0.18 per cent. 



The rectified oil was yellowish in tint, a character common to the oils of 

 this class. This colour is probably due to the influence of the phenol australol. 



36. Eucalyptus maculata. 



(Hooker, Ic. PL, t., 019.) 

 Spotted Gum. 



Systematic. A tall tree, with a long clean trunk. Bark smooth, some- 

 what shining, whitish or sometimes reddish-grey, mottled by bluish-white or 

 brown-reddish spots, indicating the places or rudiments of patches of older bark, 

 hence the vernacular name. Abnormal leaves sometimes i foot long and 3 inches 

 broad, thick, pale on the under side, venation similar to that of the normal leaves, 

 which are long, lanceolate, slightly falcate, from 4 to 6 inches long ; venation 

 distinct, fine, oblique, parallel ; intramarginal vein close to the edge, somewhat 

 obscured. Flowers in axillary or terminal panicles, on pedicels 2 to 3 lines long. 

 Calyx oblong or cylindrical, 3 to 4 lines in diameter ; outer operculum hemi- 

 spherical but depressed, either with or without a small point. 



Fruit. Urn-shaped ; rim thin, sunk; valves in- 

 serted ; about J inch long. 



// is almost similar in shape to that of E. citriodora, 

 and uncommonly resembles the smaller fruited form of 

 the ' Bloodwood " species. 



Habitat. Coastal Districts, and Tableland from Clydp River, 

 N.S.W., into Queensland. 



