not possible to separate the phellandrene at its ordinary 

 boiling point by direct distillation. The somewhat regular 

 distillation of the saponified oil is due to aqueous alkali 

 being used, because a sample of the oil saponified by 

 alcoholic potash did not boil so regularly, and mostly 

 distilled at a higher temperature. This was evidently 

 due to the partial alteration of the side chain from the 

 allyl to the propenyl group, brought about by the boiling 

 alcoholic potash. 



The specific gravity of the second fraction was 1'0368 at 

 iF C, the refractive index at 20° C. = 1*5325; and the 

 rotation a D — 0*15°. The specific gravity of the third frac- 

 tion at 20° C.= 1*039; the refractive index at 20° C. = 1-5355; 

 and it was inactive to light. These results do not indicate 

 the presence of a sesquiterpene in any quantity, but rather 

 that the constituent of the third fraction is also largely 

 methyl-eugenol, similar to the second fraction, and this is 

 confirmed by the formation of veratric acid in quantity, on 

 oxidising it with potassium permanganate. 



That the bulk of the oil from this Melaleuca is methyl- 

 eugenol is shown from the result of a methyoxy determin- 

 ation carried out by Zeisel's method. 0*2622 gram of the 

 July oil gave 0*4844 gram Agl, corresponding to 24*38^ 

 OCH 3 , which represents 70*A of methyl-eugenol. To prove 

 the identity of the methyl-eugenol both the characteristic 

 bromide and the veratric acid were prepared. The bromide 

 was obtained by dissolving the oil in carbon tetrachloride 

 and adding bromine to end reaction. The solvent was then 

 evaporated, a thick mass being left which eventually 

 crystallised. This was then purilied by repeatedly recrys- 

 tallising from alcohol. The beautiful needle crystals melted 

 at 77 - 78° O. A determination of the bromine showed that 

 0*488 gram contained 0*2786 Br = 57*09;'». C 6 H,Br (OOH 3 ) 2 

 C :1 H 5 Br, contains 57T>5 bromine. The crystalline bromide 

 was thus the tribromide of methyl-eugenol. 



