Hamilton Lanphere Smith
In 1848 Smith wrote "The World", one of the first science textbooks written in America. Smith is best known for patenting the tintype photographic process, which popularized photography in America. He patented the great American tintype on February 19, 1856.
Between 1853 and 1868 he was Professor of Natural Philosophy and Astronomy at Kenyon College, Gambier, Ohio, and later taught at Hobart College in New York. He also created a system for describing microscopic algae that is still in use today.
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