This is a large and wide ranging collection on materials. The collection contains over 1300 individual items along with 53 bound volumes, which range from letter books to records of the First Colored Wesley Methodist Church. Letters to and from the various members of the extended Hare-Willing family compose the bulk of the loose correspondence.
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This fascinating commonplace book contains some of Caspar Wistar's thoughts on medicine. Infectious disease is a particularly prominent topic. Wistar offers observations and some theories, noting how "country people" had some immunities that others did not. Wistar discusses the yellow fever epidemic in Philadelphia and infections on boats, in individuals, and within families. There is also meteorological data from 1758-1765.
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