100 



The above sample of oil was stored in the dark, and in August, 1919, was 

 again analysed. But little alteration had taken place in the oil during the twenty- 

 one years it had been kept, although the specific gravity had slightly increased, 

 perhaps the cineol had increased a little also, judging from the results with the 

 large fraction. 



On rectification, go per cent, of the oil distilled below 190 C. The results 

 obtained were as follows : 



Crude oil, sp. gr. at 15 C. --- 0-9382; rotation a + 5-0 ; refractive index 



at 20 : 1-4672. 

 Large fraction ,, ,, = 0-9211; rotation a D + 4-2 ; refractive index 



at 20 = 1-4601. 



The cineol was determined by the resorcinol method in the portion boiling 

 below 190; when calculated for the crude oil, the result was 81 per cent. By the 

 phosphoric acid method it was 65 per cent., so that absorbable substances, 

 other than cineol and alcohols, were present in some quantity. This is shown 

 by the results after acetylation, as the saponification number was then only 20-6. 



48. Eucalyptus Stuartiana. 



(F.v.M., in B.FL, iii, 243.) 

 Apple of Victoria. 



Systematic. A large tree, with a red, stringy bark, and a reddish-coloured, 

 worthless timber, similar to that of E. cinerea, F.v.M., and with glaucous, terete 

 branchlets, and glaucous inflorescence. Abnormal leaves glaucous, ovate 

 acuminate, cordate, sessile, opposite, rarely lanceolate, variable in size, the larger 

 ones about 6 inches long and 4 inches wide, and having a very pronounced venation, 

 the marginal vein being removed from the edge; the smaller leaves are 

 much finer in texture. Leaves of mature trees lanceolate, generally under 6 

 inches long, and varying in breadth, occasionally opposite, same colour on both 

 sides; venation distinct, lateral veins oblique, spreading, intramarginal one 

 removed from the edge. Peduncles axillary, flattened, about 3 lines long, with 

 generally seven or more almost sessile flowers in the head. Calyx tube conical, 

 under 2 lines in diameter; operculum conical, acute, slightly depressed below 

 the apex, or hemispherical and acuminate. 



Fruit. Sessile, turbinate, bell-shaped to hemi- 

 spherical, occasionally angular at the base ; 

 rim thick; valves exserted, sometimes pro- 

 minently so, when they are acute; about 3 

 lines in diameter. 



These fruits have often a strong resemblance to E. 

 viminalis, but rather smaller. 



Habitat. This is quite a Victorian species, occurring more 

 particularly at Black Flat, Oakleigh, Ringwood. 



