Scottish geologist Charles Lyell was one of the most profound scientific influences on Darwin and, after the Beagle voyage, a close friend.

Scottish geologist Charles Lyell was one of the most profound scientific influences on Darwin and, after the Beagle voyage, a close friend.

Principles of Geology, by Charles Lyell, at American Buddha Online Library

Principles of Geology, by Charles Lyell, at American Buddha Online Library

Biografia de Charles Lyell

Biografia de Charles Lyell

Charles Lyell - author of Principals of Geology, one of the books Alma had read relating to her work with moss.

Charles Lyell - author of Principals of Geology, one of the books Alma had read relating to her work with moss.

Charles Lyell - Thus he acknowledged that the surface if the globe has the appearance of having been subjected to great and violent sudden changes... The theory of uniformity..is consequently built  on argumentum ex silentio, or argument by default, required further analogies. ibid p 316   This often reprinted passage is an unfortunate example, for,

Charles Lyell - Thus he acknowledged that the surface if the globe has the appearance of having been subjected to great and violent sudden changes... The theory of uniformity..is consequently built on argumentum ex silentio, or argument by default, required further analogies. ibid p 316 This often reprinted passage is an unfortunate example, for,

The frontispiece from Charles Lyell's Principles of Geology (second American edition, 1857), showing the origins of different rock types.

The frontispiece from Charles Lyell's Principles of Geology (second American edition, 1857), showing the origins of different rock types.

BBC - Your Paintings - Charles Darwin (1809–1882), with Sir Charles Lyell (1797–1875), and Joseph Dalton Hooker (1817–1911) by Victor Eustaphieff

BBC - Your Paintings - Charles Darwin (1809–1882), with Sir Charles Lyell (1797–1875), and Joseph Dalton Hooker (1817–1911) by Victor Eustaphieff

Part of a letter by Charles Darwin to his friend Charles Lyell (1861) “But I am very poorly today & very stupid & hate everybody & everything.”

Part of a letter by Charles Darwin to his friend Charles Lyell (1861) “But I am very poorly today & very stupid & hate everybody & everything.”

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