Eucalyptus-Oils of Victoria. 



203 



each redistilled with the same intervals of temperature as before, 

 when the boiling point of the first of the above fractions reached 

 170°; the second was added, and when the b.p. rose to 172° the 

 third, and so on ; the distillates from each fraction being 

 collected for the intervals of temperature given in the following 

 table, which represents the final result after several complete 

 repetitions of the above operations. 



Table VI. 



The process of separation noticed in the first fractionation is 

 still going on, as again indicated by increasing densities and 

 varying rotations. To ascertain how far this separation had 

 gone, the Phellandrene test was applied to the fractions 155 - 170°, 

 179-185°, and 185-195° (Wallach and Gildemeister, Ann. der 

 Chenu, 246, p. 282). The three fractions gave the Phellandrene 

 reaction strongly, the test tubes presenting a solid mass of 

 crystals of Phellandrene nitrite Ck, Hig- ^2 Og.; after washing 

 with water, then absolute methyl alcohol, and crystallising from 

 chloroform, the crystals melted at 103°C. (m. pt. 103° - 104°C. 

 Wallach and Gildemeister, ibid.); this is suflicient to show the 

 practical impossibility of the satisfactory fractional separation of 

 the Terpenes present. Attempts to prepare Bromine addition 

 compounds from the three fractions 170-172°, 176-177°, 

 and 185 - 195° by Wallach's method {Ann. der Chem., 227, 

 p. 280) were unsuccessful in each case; only oily compounds 



