اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Hartwig, G. (Georg), 1813-1880
LoC No.: 17019337
Title: The Subterranean World
Contents: Geological revolutions -- Fossils -- Subterranean heat -- Subterranean upheavals and depressions -- Subterranean waters and artesian wells -- Volcanoes -- Destruction of Herculaneum and Pompeii -- Gas springs and mud volcanoes -- Earthquakes -- The great earthquake of Lisbon -- Landslips -- On caves in general -- Cave rivers -- Subterranean life -- Caves as places of refuge -- Hermit caves; rock temples; rock churches -- Ice-caves and wind-holes -- Rock tombs and catacombs -- Caves containing remains of extinct animals -- Subterranean relics of prehistoric man -- Troglodytes or cave-dwellers; cannibal caves -- Tunnels -- On mines in general -- Gold -- Silver -- Copper -- Tin -- Iron -- Lead -- Mercury -- The new metals -- Coal -- Bituminous substances -- Salt -- Sulphur -- Amber -- Miscellaneous mineral substances used in the industrial arts -- Celebrated quarries -- Precious stones.
Language: English
LoC Class: QE: Science: Geology
Subject: Geology
Subject: Mines and mineral resources
Subject: Caves
Release Date: Jul 1, 2016
Copyright Status: Public domain in the USA.
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