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David Bressan on

State of the art in the mid-late 1800s, by Charles Lyell, the advocat of geology, an idealized section of the earth's crust. https://jamescungureanu.wordpress.com/2015/01/03/visions-of-science-charles-lyell/

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

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from NPR.org

Thinking Thoughts No One Has Thunk

Darwin's notes stating, "If this were true adios theory" from page 442 from Charles Lyell's Principles of Geology Vol. 2.

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