Jul 20, 2008 - 08:17 AM
Tollcross Online
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Jul 20, 2008 - 08:17 AM
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Today in History
1819:
Geologist, John Playfair, died. Playfair pioneered the theory that rivers carve out their own valleys. He was a close friend of geologist, James Hutton, and wrote 'Illustrations of the Huttonion Theory of the Earth', which amplified and expanded upon Hutton's revolutionary ideas about how the Earth was formed.
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