I'm not a tree expert. In fact I know very little about trees, but I have seen
lots of old trees around Australia where the main trunk is hollow, either as a
result of fires or presumably eaten out by termites. Biut the tree doesn't seem
to have died. Maybe that's because the growing living part that carries
nutrients up the trunk to the limbs is that bit just below the bark; at least
that's what the books say in a more technical way. I'm sure someone will
correct me if I'm wrong.
Also, my recollection from school physics is that a tube is stronger than a
rod. Therefore, wouldn't a hollow branch be stronger than a solid one?
Incidentally, we've had koels calling most nights and first thing in the
morning almost every day for several weeks. We're not that far from Higgins.
Ian Hodgson
Weetangera
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