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Igneous rocks — Audiobooks

Volcanoes: Past and Present
by Edward Hull

Observations of a Naturalist in the Pacific Between 1896 and 1899, Volume 2
by H. B. (Henry Brougham) Guppy

Observations of a Naturalist in the Pacific Between 1896 and 1899, Volume 1
by H. B. (Henry Brougham) Guppy