"In order to trace the history of... petrographical resuscitation we must... transport ourselves to the workshop of an ingenious and inventive mechanician, William Nicol... Among his inventions was the famous prism of Iceland spar that bears his name. Every petrographer will acknowledge how indispensable this little piece of apparatus is in his microscopic investigations. ...it was the same skillful hands that devised the process of making thin slices of minerals and rocks, whereby the microscopic examination of these substances has become possible."
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Original Language: English
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https://en.wikiquote.org/wiki/The_Founders_of_Geology
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