.;i5 



approached the minimum oi 60 per cent. When the oil was distilled directlj 

 under atmospheric pressure, the ester was partlj decomposed. See the article 

 in this work on " Geraniol and its acetic acid estei 



Oil from the Leaves. Leaves and terminal branchlets for distillation were 

 obtained from Wingello, N.S.W., in October, 1900. The yield oi oil was 0-12 

 per cent.. 500 lb. ol leaves and brani hlets giving 9 oun< es oi oil. This appears 



PLATE LXXVIII. 



U. F. Connelly. 



EUCALYPTUS MACARTHURI (D. a M ) 

 I'M 'UN'S k|\ E K B( IX. 

 Wingello, N.S.W. 



to be a minimum yield, as the average more nearly approaches 02 percent. The 

 crude oil was red in colour, and consisted principally of the ester geranyl-acetate, 

 free geraniol, and eudesmol, with some pinene. 



The crude oil had specific gravity at r.5 C. = 0-9245; rotation a B + 3-6°; 

 refractive index at 20° t.4706, and was soluble iii I 1 , volumes 70 per cent, 



alcohol. The saponification number for the esters and free acid was 173-4, equal 

 to do-i, per cent, oi geranyl-acetate. The dextro-rotation of the crude oil was 

 partly due to the activity oi the eudesmol. 



On rectification, 1 per cent, distilled below 172 C. (corr.). Between 

 172-210,°, 10 per cent, distilled; between 219 229 , 63 per cent, distilled; the 



