George Hartwig: 1 book

Book cover of The Subterranean World
by George Hartwig
Language: English
Release Date: September 28, 2016

Nature displays her wonders not only in the starry heavens or in the boundless variety of animal and vegetable life on the surface of our earth. In the dark regions underground she likewise shows us much that is remarkable or beautiful, or carries on gigantic operations, which are sometimes beneficent...
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