1 Junn, 1898.] QUEENSLAND AGRICULTURAL JOURNAL, 519 
This tree yields much kino, and the inspissated juice (that is, the juice 
thickened by evaporation) of this tree is the well-known Botany Bay Kino. 
This gum contains 72°13 per cent. of kino-tannin, and is totally soluble in 
water. From this fact Allan Cunningham and other early botanists were 
accustomed to call the tree 7. resinifera, a designation now applied to another 
species. 
: The variety rostrata, which has very large leaves measuring from 2 inches 
to 6 inches in width in young trees, has the operculum or flower-lid longer 
than that in 2. siderophloia, Benth., and the valves of the capsule or seed 
pouch more prominent. 
It is chiefly known under the name of the Large-leaved Ironbark. 
Itis found in the Port Jackson district of New South Wales, and on 
many of the ridgy, stony forest lands of the Moreton Bay and Darling Downs 
districts of South Queensland, especially about Taylor’s Range. 
It yields an excellent timber of a reddish colour, very hard, heavy, and 
close-grained. It is considered the best of all the ironbarks for building 
purposes, construction of railway and other bridges, in wagon-building, rail- 
way sleepers, piles, and other purposes where great strength is required. It is 
also much esteemed by coachbuilders and wheelwrights, as 1t furnishes a good 
valuable timber for poles and shafts of carriages and spokes of wheels. It is 
also largely used for fencing posts and rails. 
The Narrow-leaved Ironbark is one of the most picturesque of the different 
species of Hucalypti called Ironbark. 
