Horatio C Wood, Jr.
Horatio C Wood, Jr. was an American physician and biologist. Born into a wealthy Pennsylvania family, he attended the Perelman School of Medicine at the University of Pennsylvania, and after serving as a surgeon in the American Civil War, continued to teach at the University. A member of the National Academy of Sciences, he was known for his 1874 text Treatise on Therapeutics, which became a widelyused medical textbook, and also for his botanical and zoological work writing on freshwater algae, fossil plants, arachnids, and myriapods.
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Source: Wikipedia