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Abstract

It is, I believe, about 18 years since there has been determination of the magnetic variation here, at all events
published. It may have been, and very probably was,
observed by the American Transit of Venus Expedition in
1874; but, if so, it does not appear to have been published.
The most recent authentic observation I can find is that of
Dr. Geo. Neumeyer in April, 1863, as included in his "Results of the Magnetic Survey of the Colony of Victoria."

Item Type:	Article
Authors/Creators:	Lefroy, John Henry
Keywords:	Royal Society of Tasmania, Van Diemens Land, VDL, Hobart Town, natural sciences, proceedings, records
Journal or Publication Title:	Papers & Proceedings and Report 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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