GUMS, RESINS, AND KINOS. 249 
the brown tint of the latter. It readily dissolves in cold water, 
forming a perfectly clear liquid of an orange-brown colour. 
New South Wales and Queensland. 
31. Eucalyptus siderophloia, Benth. (Syn. £. resinifera, A. 
Cunn., non Smith; £. persicifora, DC.; and probably £. 
jibrosa, F.v.M.); N.O., Myrtacez, B.FI., iii., 220. 
“Tronbark.”” (For other vernacular names, see “‘ Timbers.”’) 
See Z. resinifera, Smith. A certain amount of the “ Botany 
Bay kino” of commerce was formerly obtained from the present 
species, hence Allan Cunningham and other botanists were 
accustomed to call it Z. resinifera,a term now loosely applied 
to Eucalyptus kinos in drug lists. 
When new, it is of a rich ruby colour, both by reflected and 
transmitted light. It is mostly in tears, inclined to be horny or 
gummy, and, therefore, somewhat difficult to powder; colour of 
powder, sienna-brown. It dissolves almost entirely to a light 
orange brown liquid. 
Some bark of this tree (with adherent and apparently very old 
kino) was examined by the author (Proc. R.S., V.S.W., 1887, p. 
39), with the following results:—(a) Bark with adherent kino 
yielded 68.1 per cent. of extract, and 26.48 per cent. of kino-tannic 
acid. (4) Bark freed from kino yielded 26.56 per cent. of extract, 
and 10.4 per cent. of kino-tannic acid. (c) Kino alone, extract 
97.56 per cent., and kino-tannic acid 35.1 per cent. 
Southern Queensland to Port Jackson. 
coe Eucalyptus Sieberiana, /.v.JZ., Syn. L£. virgata, (the species 
name in B.FI.); N.O., Myrtacez, B.FI., iii., 202. 
“Cabbage Gum” of the Braidwood district of New South Wales. 
““Mountain Ash.” (For other vernacular names, see “ Timbers.’’) 
This kino is one of the most soluble of the Eucalyptus kinos. 
The slightest shower of rain softens it on the trees. Itis of a rich 
garnet colour. It is rather tenacious to powder, yielding a dull, 
orange-coloured powder. This kino, as taken from the trees, has 
very much the appearance of ribbon gum kino (£. amygdalina 
var.), except that perhaps it is a shade duller in colour, but the 
difference between them is perceptible immediately each is tapped 
