W — 63 — 



The ordinary variety containing phellandrene, which we offer for sale 

 under the collective name of Australian eucalyptus oil, has a firm tendency. 

 At the present preposterously low prices the manufacture, it is said, is 

 no longer profitable. 



R. T. Baker and H. G. Smith 1 ), the well-known authorities on the 

 eucalyptus oils, have again described the following new distillates: — 



Oil of Eucalyptus acaciceformis, Deane et Maiden. This species is 

 known as "red" or "narrow leaved peppermint", and is widely distributed 

 throughout N. S. Wales. The leaves yielded 0,197 p. c. of an oil which, 

 in the crude state, possessed a brown colour and a turpentine-like odour: 

 d 15 o 0,8864, « D + 35,7°, n D20 o 1,4713, insoluble in 10 vols. 80 p. c. alcohol. 

 Its principal constituent is d-pinene, and it also contains the sesquiterpene 

 of the eucalyptus oils (aromadendrene), and probably geranyl acetate. 



Oil of Eucalyptus Andrewsi, J. H. Maiden. This eucalypt was formerly 

 regarded as a variety (Oxleyensis) of Eucalyptus Sieberiana, but has been 

 recognised by J. H. Maiden 2 ) as a separate species. The oil-yield amounted 

 to 1,27 p. c. The leaves had been gathered in the N-E-part of N. S.Wales: 

 d 15 o 0,8646, « D —41,5°, n D150 1,4854, ester v. 4,3, insol. in 10 vols. 80 p. c. 

 alcohol. The crude oil had a lemon-yellow colour. It consists principally 

 of Z-phellandrene (m. p. of the nitrite 105° and 112 to 113°), piperitone and 

 sesquiterpene. Pinene does not appear to be present and cineol was 

 scarcely traceable. 



Oil of Eucalyptus campanulata, Baker et Smith. The leaves of this 

 new species were obtained from the N-E-part of N. S. Wales. They 

 yielded 0,851 p. c. oil. The colour of the crude product was pale yellow: 

 d 150 0,8804, « D — 25,8°, n D180 1,4856, sap. v. 7,6, barely soluble in 10 vols. 

 80 p. c. alcohol. The following constituents were found present: phellan- 

 drene (principal constituent), cineol, piperitone and eudesmol. 



Baker and Smith next refer to a few little known eucalyptus oils, which 

 they have more closely investigated and to which we will here briefly refer: 



Oil of Eucalyptus Bridgesiana 3 ). The yield amounted to 0,73 to 0,745 p. c. 

 The constants of the oil were as follow: d 15 o 0,9223 to 0,9246, « D ; + 1,9 

 to +1,8°, n D20O 1,4716 to 1,4729, sap. v. 8,7 and 7,6. The cineol-content 

 .was 73 and 78 p. c. (estimated by the phosphoric acid method). When 

 purified by steam-distillation the data of the oil were as follow: d 15 o 0,9203, 

 « D + 3,1°, n D21Q 1,4602. 



Oil of Eucalyptus Icevopinea*). The crude oil was found to possess the 

 following properties: d 15Q 0,8875 and 0,8871, a D — 30,7 to 33,3°, n D19Q 1,4691 

 to 1,4697. It does not contain above 5 p. c. cineol. 



x ) Journ. and Proceed. Royal Soc. of N. S.W. 45 (1911), 267. From a copy kindly sent to us. 



2 ) A critical revision of the genus Eucalyptus, Vol. I, p. 195. Sydney 1909. 



3 ) Baker and Smith, A research on the Eucalypts. Sydney 1902, p. 86. 



4 ) Baker and Smith, ibidem p. 41. 



