354 AUSTRALIAN NATIVE PLANTS. 
Weight of samples, glbs., 8lbs., 8}lbs.; average weight of samples, 
8.58lbs.; average weight per cubic foot, 50.20lbs.; average specific 
gravity, 0.804; total average specific gravity, 0.804; breaking 
weight of each sample, 6 tons 1 cwt. glbs., 6 tons 1 cwt. 4lbs., and 
7 tons, 2 cwt. 3lbs.; average breaking weight of samples, 752.3lbs.; 
total average breaking weight, 752.3lbs.; deflection at point of 
rupture, 63in., 5gin., and 3#in.; average deflection, 5.2gin.; total 
average deflection, 5.2gin.; average specific strength, 2053. 
Geological formation where the trees grew, mesozoic ; elevation 
above sea-level, about 1,200ft. 
Tasmania, Victoria and New South Wales. 
14. Acacia doratoxylon, A. Cunn., N.O., Leguminose, B.F1., ii., 
403. 
“Spear-wood” (it being used by the aboriginals of the interior 
districts for that purpose). ‘‘ Hickory;” a “ Brigalow;” and ‘‘Caariwan;”’ or 
“Currawang” of the aboriginals, which latter name has come to be 
frequently used by the colonists. 
Wood hard, and close-grained, tough, heavy, and durable; 
used for gates, buggy-poles, furniture, etc., and by the aboriginals 
for boomerangs and spears. It is dark-brown, with a small yellow 
sap-wood. Mr. G. S. Home tells me that this is one of the most 
useful timber trees in the Lachlan district of New South Wales. 
Specific gravity 1.215. (Report, Victorian Exhibition, 1861.) 
Diameter, 6 to 12in.; height, 20 to 35ft. 
New South Wales, Queensland, Northern Australia, South 
Australia and Victoria. 
15. Acacia excelsa, Benth., (Syn. A. Daintreana, F.v.M.); N.O., 
Leguminose, B.FI., ii., 390. 
‘“‘Tronwood.” Sometimes (though erroneously) called “ Brigalow.” 
Called ‘‘Bunkerman” by the aboriginals of the Cloncurry River, North 
Queensland, 
The wood is hard, close-grained, and very tough and elastic. 
It possesses great beauty for cabinet-work, and has the odour of 
violets. (Hill.) Diameter, 24 to 36in ; height, 70 to 8oft. 
Queensland. 
