TIMBERS. 473 
EXPERIMENTS ON THE TRANSVERSE STRENGTH OF THE Woop oF 
E. leucoxylon,by Baron Mueller and J. G. Luehmann. The 
specimens were 2ft. long and 2in. square. 
Deflection. Total Value of Specific gravity. 
: weight strength, 
ee oe At the | required to ° WwW i 
ene crisis of | break each| S= ; Air dried. bsolutely 
as, breaking. piece. 4BD* dried. 
Inches. Inches, Pounds, 
03 63 4192 3144 1.028 .go8 
03 60 3977 2983 1.061 913 
£. sideroxylon, A. Cunn.* The “ Red-flowering Ironbark ” 
of New South Wales, occurring in the bush between Parramatta and 
Liverpool, in paddocks at South Creek, and in the neighbourhood 
of Richmond, and again beyond the Blue Mountains, near Mudgee, 
and Wellington, and elsewhere, being widely diffused over the 
auriferous districts of the western interior. ‘The bark is dark, and 
deeply furrowed, and the wood is of a deeper colour than that 
of any other Ironbark. It has been made by Baron Mueller 
(Eucalyptographia) a synonym of £&. leucoxylon (see p. 471), and, 
perhaps against his better judgment (but asa matter of convenience 
in describing the two timbers), the author has accepted this 
arrangement in the present work. 
£’, sideroxylon, A. Cunn. This tree has a straight even 
bole; the timber is of the highest reputation for strength and 
durability, and is very much used for large beams in stores for 
heavy goods, poles for bullock drays, railway sleepers, girders 
and piles for bridges, and other purposes where great strength is 
required. It is one of the best fuel woods of New South Wales 
for domestic uses and steam engines. Its average weight is from 
75 to 78lb. per cubic foot when green, and it loses 3 to 5lb. in 
drying within the first two years. (General Report, Sydney 
International Exhibition, 1879.) 
E. sideroxylon is described as follows inthe Report, Victorian 
Exhibition, 1861 :—‘‘ ‘Ironbark.’ This is one of the hardest and 
* See Woolls, Plants of New South lales. 
