Eucalyptus Gigantea

This stringy bark gum furnishes a strong,

durable timber, used for shipbuilding and other purposes. _E.

robusta_ contains large cavities in its stem, between the annual

concentric circles of wood, filled with a red gum. Many of the

species yield gums and astringent principles and also a species of

manna. The timber of these trees has been pronounced to be

unsurpassed for strength and durability by any other timber known.

The leaves of these trees are placed vertically to the sun, a

provision suited to a dry and sultry climate.