216 
TIMBER 
karri being capable of withstanding the teredo, neither 
timber will do so in situations where the worm is very 
active, and in some marine works in the Australian colonies 
and elsewhere has had only a very short life. Jarrali is 
superior for resisting the sea worm to karri, and at Hartle- 
pool and other places in Great Britain jarrah has withstood 
the attacks of the limnoria for ten to twelve years in a 
situation where pine timber would have been destroyed, 
but at Singapore jarrah piles were nearly eaten through in 
eighteen months. Both timbers are liable to shrinkage, 
the trouble with all hardwoods, and those of Australia 
particularly, and they require long seasoning. Many of 
the jarrah and karri logs set to the English market 
split very badly at the ends unless kept in water, and this 
applies more or less to all Eucalyptus timber. (See Eigs 
31 and 32.) 
Tuart {E. gomjjhocejjJiala), a cream-coloured wood of 
great strength, density, and hardness, often interlocked in 
grain, has its annual rings close and distinct. The supplies 
are small and it is not much known out of the colony. It 
IS used in the framework for railway wagons and buffers, 
where it has proved satisfactory ; also for shafts, felloes' 
and wheelwrights' work generally, and where great strength 
and hardness is necessary. Not much definite information 
as to its durability is obtainable. Grows to a heigbt of 
150 ft. and 3 ft. diameter. 
Weight about 70 lbs. per cubic foot when fairly seasoned 
and 60 lbs. when dry. 
Wandoo (E. redunca) (Fig. 33), better known locally as 
white gum, grows to an average height of 60 ft. to 80 ft. 
The timber is brownish red in colour, very hard, dense, 
strong and durable. The annual rings close and distinct! 
