270 AUSTRALIAN NATIVE PLANTS. 
oxygenated compounds is one having a peppermint odour, pro- 
bably menthon.”’ 
_ Illawarra (New South Wales) to Wide Bay (Queensland). 
15. Eucalyptus incrassata, Zad://., (Syn. E. dumosa, (B.FI., iii., 
230,) A. Cunn.; £. angulosa, Schau.; L. cuspidata, Turez.; 
E. costata, Behr., et F.v.M.; £. santalifolia, Miq.; £. lampro- 
carpa, F.v.M.; &. Muellert, Miq.; 2. fruticetorum, F.v.M.); 
N.O.; Myrtacex, B.FI.,-tii., 231; 
A “ Mallee.” 
Baron Mueller found that rodolbs. of fresh twigs of this tree 
(comprising, perhaps, soolbs. of leaves) yielded. 1400zs. of 
essential oil. 
The whole southern part of the continent. 
16. Eucalyptus leucoxylon, 7.v.Jf, (Syn. 2. sideroxylon, A. 
Cunn.); N.O., Myrtacez, B.FI., iii., 209. 
“Tronbark.’’ (For the numerous other vernacular names of this tree, 
see ‘‘ Timbers.”’) 
Bosisto (Trans. R.S., Victoria, vol. vi. 1861-4) gives the 
yield of essential oil at 160zs. 7drs. from roolbs. of the leaves, 
but says this amount must be taken as approximate only, as the 
leaves had lost some part of their oil through being heated in 
transit. This is, of course, a fraction over t per cent. The oil is 
thin, limpid, very pale yellow; the taste and smell are like that of 
the oil of Z. oleosa; sp. gr., 0.923; boiling point, 155° to 178°. 
(Wittstein and Mueller.) 
Spencer’s Gulf (South Australia), through Victoria and New 
South Wales to Southern Queensland. 
17. Eucalyptus longifolia, Link, (Syn. E. Woolsit, F.v.M.); N.O., 
Myrtacee, B.FI., iii., 226. 
“Woolly Butt,” or “ Bastard Box.” 
This essential oil has an aromatic and cooling taste, and 
fragrant, camphor-like smell; sp. gr. 0.940; boiling point, 194° to 
215°. (Wittstein and Mueller.) The yield of essential oil from 
100lbs. of leaves, which had suffered in transit, was 30z. 33drs. 
