Material for distillation was also received from Armidale, N.S.W., in 

 June, 1907. The yield of oil was 0-94 per cent. The crude oil was red in colour, 

 and had an odour similar to those of the cineol-pinene oils containing aromadendral. 

 The oil was quite in agreement with that from Marulan, above, and contained 

 the same constituents in practically the same amounts, except that it was a 

 little richer in cineol. 



The crude oil had specific gravity at 15 C. = 0-9075; rotation a D + 1-5; 

 refractive index at 20 = 1-4679, and was soluble in i^ volumes 70 per cent, 

 alcohol. 



The cineol was determined by the phosphoric acid method in the crude 

 oil; the result was 57 per cent. 



95. Eucalyptus cosmophylla. 



(F.v.M., in Trans., Viet. Inst, 32, 1855.) 



Systematic. A shrubby tree, though sometimes found up to 50 feet in 

 height. Bark smooth (decorticating in thin flakes or sheets). Abnormal leaves, 

 broad, oval-cordate, sessile, crenulate, scabrous, branchlets much flanged. 

 Normal leaves ovate-lanceolate, acuminate, pale green on either side ; intra- 

 marginal vein well removed from the edge, lateral veins generally at an angle of 

 45 with the midrib. Buds large, usually three, sessile or almost so, common 

 'peduncle flattened; calyx tube conical, rough, often ridged, about 5 lines long; 

 operculum almost hemispherical, shortly pointed. 



Fruit. Semi-ovate, almost hemispherical, occa- 

 sionally ribbed ; rim bevelled or flat, 

 outer edge sometimes forming into a 

 flange; valves depressed or slightly ex- 

 serted; about 6 lines long and 6 lines 

 broad. 



In the larger form the fruit resembles those of 

 E. longifolia, but the hemispherical more closely 

 perhaps those of E. ovata, Labill., Western Aus- 

 tralia, collected by Mueller. 



Habitat. Kangaroo Island arid ranges near Adelaide, South 

 Australia. 



REMARKS. This species is endemic to South Australia, and is easy of determination, both in the herbarium 

 and field, by its specific characters. 



ESSENTIAL OIL. Material consisting of the leaves and terminal branch- 

 lets for distillation was received from the Conservator of Forests of South 

 Australia, Mr. Walter Gill. The material was collected in December, 1911. 

 The yield of oil was 0-62 per cent. The crude oil was light orange-brown 

 in colour, with an odour indicative of an oil belonging to the cineol-pinene group, 

 with a secondary one suggestive of the aldehyde aromadendral. The presence 

 of volatile aldehydes was particularly marked. The slight laevo-rotation of the 



