(R.T.B., Proc. Linn. Soc, N.S.W., p. 678, t. XLVI, fig. 2.) Small- leaved Stringybark.

Systematic. - A medium-sized tree with a thin, compressed, not furrowed, stringy-bark. Leaves lanceolate, falcate, generally under 3 inches long and under 6 lines wide, oblique, thin; venation oblique, parallel, distant, intra-marginal vein removed from the edge. Flowers on axillary peduncles of about 6 lines long. Calyx small, 1 line long, 2 lines in diameter, pedicel about 1 line long; operculum small, hemispherical, acuminate.

Fruit. - Hemispherical, sessile or shortly pedicellate ; rim thick, red; valves slightly exserted, acute; 2 lines long and 2 to 3 lines in diameter.

The shape and red rim bring it closely to those of E. hæmastoma, var. micrantha.

Habitat. - Coast Ranges and districts of New South Wales.

REMARKS.-The timber is pale-coloured, very hard, close-grained, heavy. In transverse and compression tests, it ranks higher than that of any of the other "Strigybarks" here enumerated. It is an excellent timber, and is strongly recommended for forest conservation. This is the "Stringybark" variety of E. hæmastoma, Sm., mentioned by Baron von Mueller in his " Eucalyptographia " under that specie. It differs, however, from E. hæmastoma, in the nature of the timber, texture, venation of the leaves, bark, and Chemical constituents of the oil, and it is on these differences that it is now raised to specific rank. The red rim of the fruit has evidently been the cause of the misplacing of this species, but it is now well known that this is a character common to a number of Eucalypts. It was placed later as a variety of E. lævopinea, R.T.B., on chemical evidence alone, but when the tree was better known its characters were such as to warrant specific rank. The red-coloured rim is quite absent from E. lævopinea, R.T.B. In fact, the fruits of the two species are so very different that the trees could not be synonymised with any degree of correctness in specific naming. Their bark, leaves, ven tion, and timber are also different. E. lævopinea, R.T.B., has a hard, compact bark right out to the branchlets, whilst this tree has a light-coloured, loose, stringy bark, not extending out to the limbs.

ESSENTIAL OIL. - Leaves and terminal branchlets for distillation were obtained from Barber's Creek, N.S.W., in January, 1899. The yield of oil was 0.98 per cent. The crude oil was but slightly coloured, and had an odour resembling that of ordinary turpentine. It consisted principally of pinene, which' was lævo-rotatory. Cineol was detected, but phellandrene was absent.

The crude oil had specific gravity at 15o C. = 0.8944; rotation aD - 21.4°, refractive index at 20o = 1.4717, and was insoluble in 10 volumes 80 per cent. alcohol. The saponification number for the esters and free acid was 5.

On rectification, 2 per cent. distilled below 157o C. (corr.). Between 157.170o, 84 per cent, distilled, and between 170-224o, 11 per cent, distilled. The lower boiling fraction consisted very largely of lævo-rotatory pinene.

The first fraction had specific gravity at 15° = 0.8847, and rotation aD - 23.8°. The specific gravity of the second fraction at 15o was 0.921. The results show this oil to agree closely with that distilled from E. Iævopinea. Cineol indicated about 15-20 per cent.

The above sample was stored in the dark, and in December, 1919, was again analysed. Very little alteration had taken place during the twenty years the oil had been kept. On distillation 85 per cent. came over below 190° C. The crude oil and the rectified portion gave the following results: -

The cineol was determined by the resorcinol method in the rectified portion. When calculated for the crude oil the result was 29 per cent. By the rapid phosphoric acid method it was 21 per cent. when calculated for the crude oil.