T 14 



to elongate, and often very narrow lanceolate, more or less curved. The normal 

 leaves often attain a length of 12 inches or more, much resembling those of E. 

 goniocalyx, F.v.M., but not quite so lustrous on the upper surface; venation 

 distinct, intramarginal vein removed from the edge. Peduncle axillary, short, 

 much flattened. Mowers few, sessile. Calyx angular or flattened; operculum 

 much constricted, tnberculated. 



Fruit. -Pedicellate or sessile, turbinate to slightly 

 hemispherical; rim thick; valves slightly 

 exserted ; about 4 lines in diameter. 



They resemble some forms of E. globulus and the 

 speoies is probably a local variation of that Eucalypt. 



Habitat. Victoria to the Blue Mountains, New South Wales. 

 On the ranges at an elevation from 1,000 feet to 

 2,000 feet, generally in the poor forest land, and 

 often on steep mountain sides. 



REMARKS. /. Maideni resembles E. globulus and E. goniocalyx in general appearance, and is not readily 



distinguished from the latter, with which it grows associated on the mountain slopes, tiie trunks and foliage of the two 

 having much the same appearance. They differ, however, in their fruits and young state leaves, so that there is 

 little diffii ulty in distinguishing them. They also differ in their timber. lor while that of E. goniocalyx is of a dirty 

 brown colour, the timber of E. Maideni is of a pleasing yellow tint. Though not much used, except occasionally 

 in wheelwright work, it is, nevertheless, a good, durable timber. In its localities it is rather difficult of access, and 

 usually other good, time-proved timbers occur, such as E. goniocalyx, E. tereticornis, E. melliodora, E. eugenioides. 

 Sec. It does not occur in Tasmania, the tree recorded from that State as this species is quite a different 

 Eucalyptus. 



ESSENTIAL OIL. — Leaves and terminal branchlets for distillation were 

 obtained from Barber's Creek, N.S.W., in July, 1898. The yield of oil was 1 

 per cent. The crude oil was but little coloured, and had an odour resembling 

 those of the cineol-pinene oils. It differed but little in general characters or in 

 constituents from the oil of E. globulus, with the exception that the ester content 

 was higher. It was rich in cineol ; pinene was present, but phellandrene was 

 absent. The higher-boiling portion contained the sesquiterpene. Crystallised 

 eudesmol was not detected. 



The crude oil had specific gravity at 15 C. = 0-9247; rotation a D + 

 5-8°, refractive index at 20 = 1-4679, and was soluble in \\ volumes 70 per 

 cent, alcohol. The saponification number for the esters and free acid was 21-8. 



On rectification, 2 per cent, distilled below 170 C. (corr.). Between 

 170-183 , 82 per cent, distilled; between 183-224 , 5 per cent, came over, and 

 between 224-270°, 3 per cent, distilled. These fractions gave the following 

 results : — 



First fraction, sp. gr. at 15° C. = 0-9149; rotation a D + 6-8°. 

 Second ,, ,, ,, = 0-9264; ,, not taken. 



Third ,, ,, ,, = 09330; ,, not taken. 



The cineol, determined by the phosphoric acid method in the first fraction, 

 wj.s 59 per cent. (O.M.), indicating about 50 per cent, in the crude oil. 



Material of this species was also obtained from Lochiel, N.S.W., in 

 September, 1899. The oil was practically identical in composition with the above. 

 The specific gravity of the crude oil was, however, a little less than that of the 

 Barber's Creek sample, but this might be expected from the difference in the 

 time of year; the vield of oil was also greater, probably for the same reason. It 

 was rich in cineol, and was soluble in 1^ volumes 70 per cent, alcohol. This species 

 may, therefore, be considered a good one for commercial oil distillation, and is even 



