ACADEMY OF SCIENCES. 38 
E, eugenioides—The Mountain Blue Gum; 100 feet high, and much used by 
wheelwrights and carpenters, but is not equal to EL. goniocalyx, the Flooded or 
Blue Gum. 
E. gracilis is Dr. Mueller’s E. fruticetorum; a small tree or shrub of several 
varieties. ; : 
£. Saligna a Gray or Flooded Gum of rather drooping habit and no great 
size; in low grounds, near salt water; although a fine looking tree, sometimes 
100 feet in height, the wood is inferior. 
E. maculata or Spotted Gum is one of the handsomest; 100 feet and upwards; 
well defined by its double lid and urn-shaped seed-vessel; some esteem it 
equal to the English oak, others regard it as fire-wood; used for staves and 
upper parts of railroad bridges, etc.; grows in poor soils, New South Wales 
and South Queensland. 
E. virgata—Styled Mount Ash (this name, I see, is given to #. amygdalina 
or Messmate in the Government Report of the Secretary for Agriculture of 
1874). This is a fine tree, 120 feet high, growing on rocky mountain ridges; 
makes better staves, good shafts, and all common carpenter work, fences, etc. 
E. obtusiflora—An inferior kind of Box or Blackbut; has large flowers, and 
an ovid blunt seed-vessel; the wood is valueless. 
E. pilularis or Blackbut of South Queensland, Gipps Land and New South 
Wales, is one of the largest and most valuable species of the Gums. A tree 
of over 46 feet circumference 5 feet from the butt; 150 to the first limb. The 
wood is excellent for house carpentry, ship building, and, indeed, for any 
purpose where strength and durability are required; specific gravity 0.897: no 
species known bears a greater crushing strain in the direction of its fibre; it 
prefers good soil, and grows rapidly. 
E. acmenoides, or White Mahogany, is remotely allied to the above. 
E. Bicolor comprises several varieties, called Bastard Box or Yellow Box; 
this resembles the narrow-leaved variety of Iron Bark; has grey and white 
patches, hence the specific name; 80 to 100 feet high; when young, smooth 
above, or half-barked like the Box; older, nearly all the bark falls off; the 
wood is very hard, good for fencing, shafts, poles, cogs, etc.; exceedingly 
durable; heavy, but does not split well; as it does not sun-crack, it is es- 
teemed for spokes, weather boards, etc. 
E. hemiphloia is the well-known Box. In first-class repute for hardness, 
toughness and durability; burns brilliantly, and emits great heat, but it is 
attacked in the ground by dry rot and the white ant; specific gravity, 1.129; 
shafts, spokes, plough-beams, etc. 
Proc. Cau. AcaD. Sci., Vou. VI.—3. 
