ESSENTIAL OIL. Leaves and terminal brartchlets for distillation wi 

 received from Thirlmere, N.S.W., in September, igo The yield oi oil was 



0" ;i percent. The crude oil was of a light reddish-brown colour, and had the 

 icteristic appearance and odour oi the typical " Box " oils generally. The 

 se< • •' i . 1 . 1 1 \ odoui "i aromadendral was very pronoun* ed. Pinene was onlj pr< ■ n\ 

 in small amounl and phellandrene was absent. Cineol was detected, bul only 

 to the extent oi 5 to > s pet cent. Cymene was a pronounced constiti 

 Altogether the results show this oil to be closely associated with those oi E 

 bemiphloia, /■.'. Woollsiana, &c. 



The crude oil had specific gravity al 15 C. 0-9042; rotation N '5°; 



refractive index .it 20 = [-4841, and was soluble in 1 volume 80 per 1 ent. alcohol. 



On rectification, 2 per cent, distilled below 171 C. corr. . Between 

 I 7 I 1 7 ,s • 35 P er cent, distilled, and between [78 -.'115 , 37 per cent, distilled. 

 These fractions gave the following results : 



First fraction, -p. gr. at 15 C. = o-NN<;;; rotation 1-7°. 



Se< 1 'inl ,, .. ., = 0-9130 ; .. ( '-<S°. 



The lasvo-rotation of this oil i> due to the aromadendral. Esters \ 

 only present to a small extent , as the saponification number was 6-i. 



113. Eucalyptus salubris. 



(F.v.M., in Fragm. x. 54, 1876.) 

 Gimlei Gum. 



Systematic. A tall tree, with a smooth, thin bark, stem usually much 

 twisted Branchlets often green in colour. Abnormal leaves ovate-lanceolate, 

 petiolate. Normal leaves small, lanceolate, acuminate, shining, older Leaves 

 particularly so; venation more prominenl in younger leaves, intramarginal vein 

 close to the edge, lateral veins spreading, inclined at about 30 to the mid-rib. 

 Peduncles flattened, about 3 lines long, at first axillary, later lateral, with umbels 

 ot three to *dx flowers. Buds shining; calyx tube about 1 line long, semi-ovoid, 

 pedicel twice as long; operculum blunt, conoidal, _' lines in length. 



Fruit. Small, truncate, pyriform, tapering to a 

 shorl angular pedi< el, shining ; rim convex ; 

 valves shghtl} exserted; 2 lines long and 2 



hue-, in diameter. 



/ he i ipst • fl qui 



than perhaps to any other speci 



Habitat. \\ i >t< rn Australia, 



ESSENTIAL OIL. Material for distillation was received from Western 

 Australia in fuly, 1904. ft was collected al Hine's Hill, Gn it Eastern Railway, 

 and consisted oi leaves and terminal branchlets cul as would be dom 

 commercial purposes- The yield of oil was 1-39 per cent. The crude 

 oil \\a> nt a light reddish-brown colour, and had a ver} distincl odour oi 



500.08— p 



