a Petroley; and scarcely any residue is left. I 
bee tf alcoholic solution is stained a little green! 
by ferric acetate, 
53 
1. QuEENsLAND DAMMAR. 
This endemic Queensland tree, the nearest relation to— the 
Kauripine of New Zealand (Agathis australis), yields a hard resin in 
qvantities, exuded from wounds in the bark. It is of ayellowish- 
white colour, transparent, and of a vitreous conchoidal fracture. It 
at a moderate heat, and has a smell like that of Olewm carv and 
Ol. petroselini. ts specific gravity was found by me to be 1:06. 
very nuch like the commercial dammar, and can be styled 
Queensland dammar, but it is not identical with it, as no crystals 
obtained from a solution in boiling alcohol, or from any 
other solvent, 
It is dissolved by alcohol, with a small residue, which is partly 
soluble in water (consisting of arabin). AB insoluble part might be 
entical with Dulk’s dammarylhydrate. 
Chl rof fe) S 
cluding the volatile oil, but it disintegrates it, and the half-solid layer 
HSO, dissolves it after some time. The bluish-black solution is gr 
w by alcohol, and then stained pink on addition of KOH. Of n. 
suealypt dissolves the Queensland dammar. If heated near wid 
© a eolourl ile oi saaph eeee 
tless volatile oil distils over im greater q ll between 
ANALYSIS— 
tile oil wie aie Gi 
Resin soluble in chloroform ... . + 68 
in insoluble in chloroform... + ake 
99°4 
Queensland dammar might be used as an ingredient for varnishes. 
nat: 800d pellucid sitlioaive plaster can be made by melting casemge 
i of Queensland dammar, 6 parts of Canarium TesiD, parts 
Wax, and 8 parts of castor oil or Ailanthus resin. 
a : 2. Qurenstanp Copal. is b 
E an fossil resin has lately been found in large quantities, but aed 
is at present only known to the discoverer. Tt looks mu’ 
ike the New Zealand copal on the surface, but the inner pa 
t 80 
iit" pieces found larger than a man’s head. The Queews (so that it 
m, and oil of turpentine the resin ‘<h-black sometimes 
KOH produces a yellow colouration gat 
_ Mealypt dissolves Fats, wax, 
Melt ¢, ves the Queensland copal. Fats, W** 
: “elt together With it, but not easily. : 
