(J.H.M. & R.H.C., Roy. Soc., N.S.W., 1918, p. 495; Desc., in Proc. Linn. Soc, N.S.W., 1905, p. 193, under E. capitellata.)

Systematic. - A tree of medium size, bark not typically stringy, but inclined to that of "Peppermint." Abnormal leaves ovate-lanceolate, margins undulate and with a reddish rim when fresh; young branchlets and foliage rough, owing to presence of stellate hairs. Normal leaves ovate-lanceolate to lanceolate, unequal at the base, thick, coriaceous, acuminate; venation indistinct, intra-marginal vein not far removed from the edge, lateral veins inclined at about 300 to the mid-rib. Flowers in heads of about ten, borne on thick, angular peduncles, varying up to 1 inch in length. Buds clavate; calyx tube pyriform, 2 to 3 lines long; operculum compressed, hemispherical, obtuse.

Fruit.-Sessile, compressed, hemispherical; rim broad, domed; valves exserted; about 4 lines long and 6 lines in diameter.

The fruits cannot be separated in herbarium material from those of E. capitellata.

Habitat. - Blue Mountains, Blackheath, Mount York, Wombeyan Caves, New England, New South Wales; Gipps-land, Victoria.

REMARKS. -It requires a field knowledge of the barks and a chemical test of the oils to differentiate the species from E. capitellata, as the two are very closely related.

ESSENTIAL QIL. - Leaves and terminal branchlets for distillation were collected at Blackheath, N.S.W., in April, 1914. The yield of oil was 0.83 per cent. The crude oil was of a dark-amber colour, and had a pronounced turpentine-like odour. Pinene was present in considerable quantity, but phel-landrene was absent. Cineol was present, but esters were in small amount, and eudesmol not detected.

The crude oil had specific gravity at 15° C. = 0.8881; rotation aD + 11.0°; refractive index at 20o = 1.4653, and was soluble in 6 volumes 80 per cent. alcohol. The saponification number for the esters and free acid was 4.8. After acetylation the value was 63.4, and in the cold with two hours' contact, 48.8. The esterised oil was particularly aromatic.

On rectification, 1 per cent, distilled below 158o C. (corr.). Between 158.172°, 77 per cent, distilled; and between 172-188°, 14 per cent. came over. The thermometer then rose quickly to 257°, between which temperature and 267°, 3 per cent. distilled. These fractions gave the following results :-

The cineol was determined by the resorcinol method in the portion distilling below 188o. When calculated for the crude oil the result was 22 per cent. By the rapid phosphoric acid method it was 21 percent, when calculated for the crude oil.

The Pinene. - A portion of the first fraction was shaken with 50 per cent. resorcinol to remove the cineol, the remaining oil fractionated, and the portion distilling below 158o separated. The nitrosochloride prepared with this melted at 104o C, thus confirming the previous indications for pinene