![](http://www.alamy.com/thumbs/6/D00427DC-5927-4908-9D4C-E10F7BE5B121/HBR5PD.jpg)
Image taken from page 78 of '[Manual of Geology: treating of the principles of the science with special reference to American geological history ... Revised edition.]' Image taken from page 78 of '[Manual of Geology treating
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Photo credit: © Classic Collection / Alamy / Afripics
License: Licensed
Model Released: No
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