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Abstract

Professor T. W. Edgeworth David, B.A.,
F.G.S., one of Australia's most distinguished
geologists, has kindly sent me a
copy of an interesting paper read by him
before the Royal Society of New South
Wales in the year 1893, regarding the
occurrence of "Sill Structure" in the
eruptive rocks of that colony.
It has additional interest for Tasmanian
geologists, inasmuch as it raises the
question at the head of this paper, viz.
—
" Are all the Colossal Igneous Caps of the
Tasmanian Tiers, and of the Lofty Mountain
Plateaux — such as Ben Lomond, Mount
Wellington, and the Great Plateaux of the
Lake Country - True Sills ?

Item Type:	Article
Authors/Creators:	Johnston, Robert Mackenzie
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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