225 



REMARKS. \ii> at present known restricted in it tl distributi* 



,,i | Ki v .1 ol New South Wales, and Gippsland, V I Di Wooll wa verj probably the 



.fleet material of this I ination and I icllei under the local nami 



i lyptographi I • ' on morpln 



i t „ | Red Box ! chau I dried specimen two specie much aliki 



tin- shape ol the leaves and fruits, bul the trees differ considerably in i For insta Red 



" has .1 persistent " Box " bark right out to the branchlets, .i • t.n i ol 



this i is thick, rough, flakv bark. The two timbers alow ient to differentiate the trei 



,,,, 1 quitedistii I i how necessary 



it i- that field and o [uired in ordei rank of Eucaly] 



This i i urs on the bank ofrivers and creel It diffi in e co 



Maiden (< rit, Rev. Euc. vol. ii, \< I - this species un ma, which was founded on an 



imperfect description and spei plump bud and an I Bowei " surely worthless data upon which 



to perpetuate a 



ESSENTIAL OIL. Leaves and terminal branchlets for distillation were 

 obtained from Thirimere, N.S.W., in July, 1900. The yield of oil was 0-3 per cent. 

 The colour of the oil was orange-brown, and the odour somewhal rank. The oil 

 mtained a good quantity of phellandrene ; and pinene was presenl in small amount ; 

 cineol was detected, but only about 5 to ro per cent, in the crude oil at time 

 ol distillation. Aromadendral was also detected. The sesquiterpene was present 

 in some quantity, bul esters were not pronounced. 



The crude oil had specific gravity at 15° C. = 0-8805 ; rotation a - 12-5°; 

 refractive index at jo = 1-4X24, and was insoluble in to volumes 80 per cent. 

 al( ohol. The saponification number for the esters and free acid was 3-3. 



On rectine.itii.ii, z per cent, distilled below 172 C. corr. . Between 

 172 183°, |.8 per cent, distilled; between 183-255°, zz per cent, came over, and 

 between 255-276°, 16 per cent, distilled. These fractions gave the following 

 results : — 



First fraction, sp. gr. at 15° C. = 0-8624; rotation a D - 16-9°. 

 Second ,, „ „ = 0-8697; ,, - 16-5°. 



Third ., ., ,. =0-9378; ,, not taken. 



The laevo-rotation was largely due to the phellandrene. As only 1 per 

 cent, distilled between 200 255° C, the aldehyde aromadendral could only be 

 present in small amount. 



Leaves from this species were also obtained from St. Mary's, N.S.W., in 

 November, r.900. The oil differed but little from the Thirlmere sample; it 

 contained similar constituents, and the several fractions were laevo-rotatory to 

 about the same extent, but the aldehyde aromadendral was present in rather 

 larger amount. The specific gravity of the crude oil was 0-895. The cineol 

 present was about the same as in the previous sample; the saponification 

 number for the esters and tree- acid was 3-5. The crude oil formed a clear solution 

 with 2 volumes 80 per cent, alcohol. 



The above samples were mixed together and stored in the dark, and in August, 

 ims. the oil was again analysed. Not much alteration had taken place during 

 the nineteen years the oil had been kept, except that the rotation had fallen a 

 little, and the specific gravity increased to a small extent. These alterations 

 are what rnighl be expected with Eucalyptus oils in which phellandrene occurs. 

 The crude oil had sp. gr. at 15° C. =0-8912; rotation a B r.o-o°; refractive 



index at 20° = 1-4820. 

 Rectified portion „ „ 0-8726; rotation i.;-5°; refractive 



index at 20°= 1-4755. 

 The cineol was determined by the resorcinol method in the rectified 

 portion; when calculated for the crude oil the resull was 17 per cent. The 

 indication with phosphoric acid was foi about 10 per cent, oj that constituent 



