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present we are still unable to give an explanation of this peculiarity ob- 

 served by us, but in any case the fact has to be taken into account that 

 it is possible, in certain circumstances, for linaloe oils of good quality 

 to have a somewhat higher linalyl acetate content. 



Matico Oil. Now that our stocks are exhausted we are regretfully 

 compelled to abstain from quoting this oil for the present, as we cannot 

 succeed in procuring suitable raw material. The shipments of matico 

 leaves to Europe have lately fallen off very considerably. 



Melaleuca Oils. Continuing their investigations of the Australian 

 Melaleuca-species 1 ), R. T. Baker and H. G. Smith 2 ) have discovered that 

 cajuput oil (of Melaleuca Leucadendron, L., N. O. Myrtacea?) is not a typical 

 representative of the melaleuca oils. The oils which they now describe 

 deviate considerably from cajuput oil in their constitution. 



Oil of Melaleuca genistifolia, Sm. According to an old statement by 

 Bosisto, this plant yields 0,07 p. c. oil. Baker and Smith, however, obtained 

 from leaves and terminal branchlets collected on the coast of N. S. Wales, 

 0,526 p. c. of an oil of pale yellow colour, with a well-defined odour of 

 turpentine, possessing the following constants: d 150 0,8807, « D + 32,7°, 

 nD22o 1,4702, sap. v. 6,8, insol. in 10 vols. 80 p. c. alcohol. A fraction, b. p. 154 

 to 158° was found to contain <2-«-pinene (nitrosochloride m. p. 104°); a portion 

 boiling between 162 and 183° contained 2 p. c. cineol (resorcin method). 

 The highest-boiling fractions contain a sesquiterpene. The oil contains 

 from 80 to 90 p. c. pinene. 



Oil of Melaleuca gibbosa, Labill. The distilling material consisted of 

 leaves and terminal branchlets collected in Tasmania. The oil-yield was 

 0,158 p. c; the crude oil was deep-yellow and had an odour of cineol 

 and pinene: d 15 o 0,9138, « D + 4,5°, n D20 o 1,4703, sap. v. 9,9, insoluble in 

 10 vol. 70 p. c, soluble in its own vol. 80 p. c. alcohol. The oil contained 

 61,5 p. c. cineol (estimated by the resorcinol method). Another important 

 constituent is a-pinene (m. p. of the nitrosochloride 104°) while the highest- 

 boiling fractions contain a sesquiterpene and perhaps also terpinyl acetate. 



Oil of Melaleuca pauciflora, Turcz. The distillation-material was derived 

 from the Coast of N. S. Wales (leaves and terminal branchlets). It yielded 

 0,3 p. c. of an oil of a dark amber colour and somewhat viscous con- 

 (Psistency, possessing the following characters: d 15 o 0,9302, «d + 3,3°, 

 "d240 1,4921, sap. v. 8,25, barely soluble in 10 vols. 80 p. c. alcohol. The oil 

 only contains 8,7 p. c. cineol (estimated by the resorcinol method). Another 

 sample of the oil gave the following constants: d 150 0,9552, n D240 1,4923. No 

 pinene was found present, but the oil may contain limonene or dipentene. 

 It is possible also that it contains terpinyl acetate as well as about 5 p. c. 



!) Comp. Report April 1907, 14; November 1908, 28; April 1912, 93. 

 2 ) Journ. and Proceed. Royal Soc. of N. S. W. 45 (191 1), 365. From a copy kindly sent to us. 



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