(F.v.M., in Fragm. XI, 14, 1878.) Morrel.

Systematic. - A tree attaining a height of 120 feet, with a rugose, ash-coloured bark on the trunk, persisting to the branches. Leaves lanceolate, acuminate, about 4 inches long, thick and smooth, venation not conspicuous. Peduncles axillary or lateral, each bearing three to nine pedicellate flowers. Calyx tube semi-ovoid or turbinate, less than half as long as the conical, obtuse or acute operculum.

Fruit. - Ovoid or turbinate, truncate, sometimes contracted at the orifice; rim flat or concave; points of the valves formed by the split base of the style, acuminate, often connivent, much exserted.

These fruits so much resemble those of E. oleosa, except for the coalescing of the valves at the top, that it was not thought necessary to depict them.

Habitat. - Western Australia.

ESSENTIAL OIL. - This sample of oil was distilled by Mr. P. R. H. St. John, in Melbourne, September, 1919, the material being collected from trees cultivated in the Botanic Gardens of that city. The yield of oil was 1.2 per cent. The crude oil was but little coloured, had an odour similar to those of the cineol-pinene oils generally, with a secondary aromatic one. Volatile aldehydes were not pronounced. The constituents present were dextro-rotatory pinene, cineol, esters, alcoholic bodies, and some sesquiterpene. Phellandrene was not detected.

The crude oil had specific gravity at 150 C. = 0.9203; rotation aD + 5.0°; refractive index at 200 = 1.4670, and was soluble in 1 1/2 volumes 70 per cent. alcohol. The saponification number for the esters and free acid was 10.8 by heating. There were no esters saponified in the cold. After acetylation, the sapon fication number was 51.9, of which amount 45.7 was saponified in the cold with two hours' contact. This result represents 11 per cent. of free alcohols calculated for the C10Hl8O molecule.

On rectification, 2 per cent. distilled below 1600 C. (corr.). Between 160-172°, 20 per cent. distilled; between 172-193°, 62 per cent. came over; between 193-2.22°, 8 per cent. distilled, and between 22-265°, 7 per cent. These fractions gave the following results: -

The cineol was determined by the resorcinol method in the portion boiling between 160-1930, and calculated for the original oil; the result was 61 per cent. By the phosphoric acid method, taken in the crude oil, the result was 56 per cent., thus indicating but a small proportion of absorbable constituents, other than cineol, in the portion distilling below 193° C. The alcohol was evidently a high-boiling one, and lævo-rotatory; it had a distinct cinnamonlike odour.

The oil at our disposal was not sufficient to enable further work to be done with this alcohol.