26 TASMANIAN FORESTS: THEIR BOTANY AND ECONOMICAL VALUE. 
that contain heart-wood or sap-wood must be rejected. These 
are both worthless and soon decay. e true serviceable blue 
gum must come from the omar nseeie of the tree, about mid- 
way between the bark and ce 
ce are other trees used beatlni these, but — are not the 
in sources of supply. The celebrated Huon p ne (Daer: oti 
froniilints Hooker) is much in demand, but getting daily mo 
scarce ; it is only found in a few remote spots far in the stoi 
ain ranges. e sources of the Picton are now the principal 
localities whence this timber is derived. Another tree, much us 
for spars, is — celery-topped pine (Phy caisgge rt rhomboidalis®) 
it is much more common than the former. Muskwood (Olearea 
piviglias: dogwood (Bedfordia salicina) are used for orna- 
mental purposes with lightwood, or blackwood, for it goes by 
both names (Acacia melanosylon) she-oak ( Casuarina str iste), and 
0 trees. 
The blackwood (Acacia melanosylon) is largely used for oil- 
casks, and is the only wood we have in Australia, as far as we 
ider 
iture, railway carriages, boats, — billiard tables, pianos 
(for sounding boards and actions), and n merous other purposes. 
Silver wattle ~apenye currens) is im much used for staves, 
from 20 inches to 5 feet long; it is shipped in — 
to Victoria, and | for beef and water casks. 
12 to 24 inches in diameter are the usual sizes poadiie 
ly esteemed because of the many dyeing purposes for 
which it is found they are almost unequalled. Young are 
still very common, but the time is not far distant when Tas- 
manian soleate er find it worth their while to cultivate a 
ma moschatum) is found to be very 
wimahis ee sash and on creak, The wine or beech (Fagus 
0  gpeig " 8 equally prized for the same purposes, and 
indeed all ki a of light _ sa Latterly sash and door 
* Besides the Tasmanian tree, whic h is endemic, there are onl: 
semen hin aren ge gests kn, nen New Zand od the other im 
