Tin- above sample had been preserved in the dark, and in Augusl i<ii'i. 

 was again analysed. Qie alteration thai had taken place in the oil during the 

 _'_' years it had been kepi was not \<t\ pronounced; the specific gravity had 

 increased somewhat, and a precipitate had formed; perhaps the cineol had also 

 increased as indicated from the results with the fractionated oil. 



On rectification 90 per cent, distilled below 190 < . The results with the 

 crude and rectified oils were as follow: 



Crude oil, sp. gr. at 15 C. = 0-9249; rotation a B + 3-0 ; refractive index 



at 20 = 1-4699. 

 Fraction . ,, = 0-91.;;,' rotation a, | .:■ \ . refractive index 



at 20 = 1-465] . 

 The cineol, determined by the resorcinol method in portion distilling below 

 190 and calculated for the crude oil, was 69 per cent. By the rapid phosphoric 

 acid method 11 was 56 per cent, when calculated for the crude oil. 



63. Eucalyptus accedens. 



(W.V.F., in Jour. W.A. Nat. Hist. Soc, i, 21, 1904.) 



Systematic. A medium-sized tree, attaining a heighl of 60 feet, with a 

 smooth persistent, greyish or white bark, blotched with patches oi darker colour. 

 Abnormal leaves broad-ovate, up to 6 inches long and 6 inches across, thick and 

 1 oarse, petiolate, often cordate at the base. Normal leaves ovate to lanceolate, 

 sometimes falcate, averaging 3 to 4 inches long, thi< k, often acuminate : venation 

 not conspicuous, intramarginal vein not far removed from the edge, lateral 

 veins inclined at about 40 to the mid-rib. Flowers about eight in umbels, the 

 common peduncle axillary or lateral, slightly angular, aboul 8 lines long. Calyx 

 tube turbinate, about 3 lines long, tapering to a pedicel not quite as long; 

 operculum i. 1 , lines long, semi-ovoid, rounded at the apex. 



Fruit. Turbinate or sub-cylindrical, sometimes 

 conpidal, scarcely or not contracted a1 

 the orifice; rim narrow, counter-sunk 

 grooved at the top and usually cracked 

 transversely; valves slightly exserted; 4 to 

 5 lines long, 3 lines broad. 



\.mongst the Eastern species /In nearest in shap 

 these are E. ochrophloia and E. Fergusoni. 



Habitat. Restri ted to Western Australia 



ESSENTIAL OIL. Leaves and terminal branchlets oi this species for 

 distillation were received from Mr. C. E. Lane-Poole, the Conservato] oi Forests, 

 Western Australia. The material was collected in August, 1918. The yield oi 

 oil was 0*87 per cent. The crude oil was vri\ in colour and had an odour similar 

 to those oi the cineol pinene oils oi the " Gum " group. The chief terpene was 



i ii atory pinene; phellandrene was absent, and cineol only present in 



fair amount. Crystallised eudesmol was detected. The esters were mostlj 

 high-boiling, and the oil contained some sesquiterpene. 



The crude oil had specific gravity a1 C5 C. 0-9084; rotation, a D + 13-4° ; 

 refractive index a1 20 = 1-4691, and was soluble in o, volumes 70 per cent, 

 alcohol, 1 he saponification number for the esters and free acid was 4-6. 



