EUCALYPTUS TREES. 95 
eighty-one feet, its lower diameter to be twenty-six 
feet, and at the height of three hundred feet its diam- 
eter six feet. Suppose ovcy half the available wood 
was cut into planks of twelve inches width, we would 
get, in the terms of the timber trade, four hundred 
and twenty-six thousand seven hundred and twenty 
superficial feet at one inch thickness, sufficient to cover 
nine and three fourths acres. Thesame bulk of wood 
cut into railway-sleepers, six feet by six inches by 
eight inches, would yield in number seventeen thou- 
sand seven hundred and eighty. Not less than « 
length of twenty-three miles of three-rail fencing, 
including the necessary posts, could be constructed. 
It would require a ship of about one thousand tonnage 
to convey the timber and additional firewood of half 
the tree; and six hundred and sixty-six drayloads at 
one and one half tons would thus be formed to remove 
half the wood. The essential oil obtainable from the 
foliage of the whole tree may be estimated at thirty- 
one pounds; the charcoal, suppose there was no loss 
of wood, seventeen thousand nine hundred and fifty 
bushels ; the crude vinegar, two hundred and twenty: 
seven thousand two hundred and sixty-nine gallons ; 
the wood-tar, thirty-one thousand one hundred and 
fifty gallons ; the potash, two tons eleven hundred 
weight. But how many centuries elapsed before un- 
disturbed nature could build up by the subtle process- 
es of vitality these huge and wondrous structures ! 
Some feelings of veneration and reverence should 
also be evinced toward the native vegetation, where 
it displays its rarest and grandest forms. It is la- 
mentable that in all Australia scarcely a single spot 
