Scope and Contents These holdings do not include all of Jones's correspondence in the field of biology, since he believed that collections, papers and letters about material from a given region should be deposited and preserved in that area. Other letters have been distributed among various individual correspondents, Boston Museum of Natural History, Society of Natural History of Wilmington, Delaware, and the U. S. National Museum. The Academy's collection contains letters from 166 authors who wrote a total of...

Scope and Contents While fundamentally a banker and businessman, Martindale was an accomplished naturalist, with interests largely in the fields of botany and entomology. Once treasurer and councilman of the Academy, vice-president of the American Entomological Society and Corresponding secretary of the Botanical section; also a member of the American Philosophical Society of Philadelphia. His collection of insects was purchased by the Academy. His botanical collection is a prized possession of the...