477 



On rectification a few drops of acid water with some 

 aldehydes came over below 163° C. (corr.). Between 163- 

 167°/ 32 per cent, distilled; between 167-198°, 53 per cent, 

 came over; the temperature then rose to 245°, and between 

 that temperature and 272° 10 per cent, distilled. These 

 fractions gave the following results : — 



The cineol was determined by the resorcinol method in 

 the portion distilling below 198°. When calculated for the 

 crude oil the result showed 42'5 per cent, of cineol to be 

 present. 



The oil belongs to the pinene-cineol class, and does not 

 contain constituents which might be considered of a special 

 character. The species is thus of little value as an oil-pro- 

 ducing tree, particularly as others are available from which a 

 greater yield of oil can be obtained and also much richer in 

 cineol. 



The chemical resemblance between "Blue Gum" (E. 

 leucoxylon) and "Red Mallee," as shown by the formation of 

 a red coloration to the leaves when steam-distilled, is further 

 exemplified with their oils, and it will be observed that the 

 results obtained with the oils of these two trees are in strong 

 agreement. 



11. Eucalyptus pachyphylla, F. v. M. (Jour. Linn. Soc, 



pp. Ill, 98). 



This species belongs to the shrubby group of Eucalypts, 

 and is found in the dry interior near Lake Amedeus, and the 

 McDonald Range. 



12. Eucalyptus Lansdowneana, F. v. M. et J. E. B. 

 ("Forest Flora of S. Aus."). 



"Red Flowering Mallee." 



This was described and figured by Mueller and Brown in 

 The Forest Flora of South Australia," published in 1882. 



