Collections : [University of Michigan Bentley Historical Library]

The Correspondence series (1893-1947) is divided into three subseries: General, Personal, and Miscellaneous. General Correspondence concerns a variety of topics, mainly medical, including discussions of writings, studies, lectures, and clarifications of laboratory procedures. Personal Correspondence contains correspondence reflecting personal and family concerns. Of particular interest are two letters written by Warthin to "Dear Friend" from Vienna in the summers of 1893 and 1894 in which he shares his reactions to life in Vienna and the medical processes of the time. Also included is a folder of correspondence from Sir William Osler, who in many ways was Warthin's mentor. Miscellaneous Correspondence contains correspondence received by Warthin and Dr. Carl Vernon Weller. Weller served on the staff with Warthin and succeeded him as chairman of the Department of Pathology. Some of the correspondence addressed to Weller is written after Warthin's death which accounts for the collection's later dates.

The Topical Files series (1896-1930) is divided into five subseries: Associations and Organizations; Medical Museums; Medical Opinions, Advice and Studies; Publications; and University of Michigan. Although the majority of these subseries consists of correspondence, some studies and reports are also included.