BY J. H. MAIDEN, 439 



acid, it is wholly converted into carbazotic acid, and when a slip 

 of tir-wood is dipped in it, and then moistened with either muriatic 

 or nitric acid, the deep blue colour passing quickly into brown, so 

 characteristic of hydrate of phenyle, is immediately produced, with 

 which substance the oil appears completely identical. The light 

 oil above mentioned, the quantity of which is extremely small, is 

 separated from the hydrate of phenyle by saturating it with an 

 alkali and distilling the mixture in a glass retort with a gentle 

 heat. In smell and properties it resembles benzine, and is most 

 probably a mixture of benzine and cinnamene ; unfortunately the 

 quantity obtained was so small, tliat I was unable to subject it to 

 more particular examination." (Stenhouse, /"Ai^. Mag., June, 1846.) 



In Journ. Soc. Chem. Ind., iv., 97, will be found a series of 

 constants, by Mills and Muter, of bromine absorptions, for eight 

 samples of Xantliorrhoea resin, comprising X. hastiiis, X. Preissii, 

 and possibly others. 



Part III. — Other species of Xanthorrhcea. 



Xanthorrhcea arborea, R.Br., B.Fl., vii., 115. 



Found in New South Wales and Queensland. Monga, near 

 Braidwood, N.S.W., 4th and 5th October, 1886. 



This sample is in large concentric masses, consisting of the 

 remains of leaves (in situ) cemented together with the resin, the 

 resin usually being so abundantly in excess that large pieces of 

 the pure substance are readily obtainable. The inner portion of 

 these masses is a true mould of the caudex. Where the resin 

 weathers it is seen to be of a liver-colour, but it readily fractures 

 (in a very similar manner to gamboge), and shows a very bright 

 fracture. The colour is pleasing, and I can only describe it as of a 

 rich purplish-brown inclining to ciimson. It is readily reducible 

 to a fairly fine powder, which is of a dull burnt sienna-brown, 

 admixed with a few dark particles. The powder possesses a faint 

 aromatic odour, from which the lump appeal's quite free. It tastes 

 slightly of benzoic acid. 





