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Abstract

It remains a fact that some of the grandest
achievements of science are due to workers who have had to
be content with very simple and perhaps roughly constructed
apparatus, the outcome of their own ingenuity, called forth
by the necessities of the case. The writer claims the
applicability of the foregoing remarks to his own case only
so far as they relate to the necessity of trusting mainly to
his own resources in his very limited field of scientific work.
The instrument of which the following is a description, has
been in this way the outcome of his necessity. Its special
function is the measurement of very minute angular distances,
such as those of double stars, giving at the same time the
angle of position with reference to the meridian.
A few preliminary remarks on some of the existing forms of
Micrometer may help to elucidate the special adaptability
of the instrument to be described for the work for which it
was designed.

Item Type:	Article
Authors/Creators:	Biggs, Alfred Barrett
Keywords:	Royal Society of Tasmania, Van Diemens Land, VDL, Hobart Town, natural sciences, proceedings, records
Journal or Publication Title:	Papers & Proceedings of the Royal Society of Tasmania
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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