This is also one of the gum-trees which is chiefly to bo found in Western Australia, where it grows to a height often exceeding 200 feet. The colour is much darker than the blue gum, and very much resembles mahogany. It is used for all the ordinary building purposes as well as for hydraulic works, such as piers, jetties, etc, and for ship-building.

This timber, which was employed in the whaling jetty at Freemantle, was found after sixteen years to be in as good condition as when first used.

It has a most valuable property, that of resisting the attack of the sea-worm and white ant, which are said never to penetrate more than the outer or sap wood.