272 R. T. BAKER AND HENRY G. SMITH. 



commercial distillation, so that the yield is an average one. 

 The crude oil was red in colour, very mobile, and had a 

 rank, turpentine like odour. It consisted principally of 

 dextro-rotatory pinene and the sesquiterpene of Eucalyptus 

 oils. Phellandrene could not be detected, and eucalyptol 

 was only present in very small quantity. The amount of 

 ester was somewhat large for an oil of this class, and con- 

 sisted almost entirely of geranyl-acetate. In its general 

 characters the oil of this species has some resemblance to 

 that of E. nova-anglica, although the abundance of dextro- 

 rotatory pinene (with a very high rotation), the less yield 

 of oil, the higher ester content, the lower specific gravity, 

 and the small quantity of the sesquiterpene, all show it to 

 differ from the oil of that species. The following results 

 were obtained with the crude oil : — 



Yield of oil per cent = 0*197 



Specific gravity at 15° C . = 0*8864 



Rotation a D = +35*7° 



Refractive index at 20° = 1*4713 



Insoluble in 10 volumes 80 per cent, alcohol. 



Ester by boiling, 3*216 gram oil required 0*056 gram 

 KOH>.\ S.N. = 17*41. 



Ester in the cold, two hours contact, 2*59 gram required 

 0*042 gram KOH .*. S.N. = 16*21. 



From this determination the ester is principally geranyl 

 acetate and the cold saponification of the oil shows 5*7 

 per cent, of that ester to be present. 



Only 50 cc. of the oil could be spared for rectification, 

 and only one or two drops came over below 154° O. (cor.) 

 Between 154-157° 70 per cent, distilled; between 157-183 

 16 per cent, came over, leaving 14 per cent, of high boiling 

 constituents in the still. The specific gravity of the first 

 fraction at 15° O. = 0*8644; of the second = 0*8772 and of 

 the residue = 0*9833. The rotation of the first fraction 



