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Abstract

In attempting to form an estimate of the cost of constructing
and maintaining a range of wharves, whether along the
sea-coast exposed to the action of salt water as at Hobart
Town, or upon the banks of a river where fresh water can
only operate upon them as at Launceston, one great element
in the account will always be the relative duration of the
materials which the engineer may have at his disposal ; whether
such materials be exposed to merely the common causes
of decay, namely, the action of the air or the water, with the
ordinary wear and tear of the structure of which they form a
part, or to some local and peculiar action,—such as, in the
case of timber, the destructive agency of the Teredo navalis
and other worms.

Item Type:	Article
Authors/Creators:	Denison, William Thomas
Keywords:	Royal Society of Tasmania, Van Diemens Land, VDL, Hobart Town, natural sciences, proceedings, records
Journal or Publication Title:	Papers and Proceedings of the Royal Society of Tasmania
ISSN:	0080-4703
Collections:	Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:	In 1843 the Horticultural and Botanical Society of Van Diemen's Land was founded and became the Royal Society of Van Diemen's Land for Horticulture, Botany, and the Advancement of Science in 1844. In 1855 its name changed to Royal Society of Tasmania for Horticulture, Botany, and the Advancement of Science. In 1911 the name was shortened to Royal Society of Tasmania.
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