Journal and proceedings of the Royal Society of New South Wales . ual to 15 per cent, cineol in the crude is thus evident other bodies in addition to the cineolwere absorbed by the resorcinol. The alcohol was probablyterpineol and was in the dextrorotatory form. That the greater portion of the oil consisted principallyof dextrorotatory pinene was demonstrated in the followingmanner:—The rectified oil was agitated for some consider-able time with a 50 per cent, cold aqueous solution ofresorcinol until absorbable bodies were removed. Theremaining oil had specific gravity at 15° =0*8640; r
Journal and proceedings of the Royal Society of New South Wales . ual to 15 per cent, cineol in the crude is thus evident other bodies in addition to the cineolwere absorbed by the resorcinol. The alcohol was probablyterpineol and was in the dextrorotatory form. That the greater portion of the oil consisted principallyof dextrorotatory pinene was demonstrated in the followingmanner:—The rectified oil was agitated for some consider-able time with a 50 per cent, cold aqueous solution ofresorcinol until absorbable bodies were removed. Theremaining oil had specific gravity at 15° =0*8640; rotationaD + 33*6°; refractive index at 15° =1*4674, and gave anitrosochloride melting at 104°. Although these results are interesting as demonstratinggreat diversity in the essential oils of the Melaleucas, yet,it is apparent that Melaleuca Deanei can have no economicvalue as an oil producing plant, the chief constituent beingpinene, and oxygenated bodies are only present in verysmall amount. Journal Royal Society W., Vol. L VI., 19>22. Plate , del MELALEUCA DEANEI, ESSENTIAL OIL OF BACKHOUSIA MYKTIFOLIA. 125 The ESSENTIAL OIL of BAOKHOUSIA MYRTIFOLIA, Part I. By A. R. Penfold, Economic Chemist, Technological Museum, Sydney. [Read before the Royal Society of N. S. Wales, August 2, 1922.] The botany of this small or medium size tree was firstdescribed in Botanical Magazine, t. 4133, by its authorsHooker and It is the grey or scrub Myrtle,usually a small tree with myrtle-like leaves and pleasingwhite flowers found growing in most gullies containingrunning water in the coast and coast mountain districts ofthis State, extending to Queensland, being particularlyplentiful in the southern district of New South Wales,Although specimens of its essential oil have been in theTechnological Museum since 1896, the oil had not previouslybeen examined until Mr. T. H. Brown of Ourrowan, viaNelligen of this State enquired as to its economic valuew
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