This collection documents the professional work and personal lives of the author Arthur Kahn (1850-1928) and his son, Fritz Kahn (1888-1968). The bulk of the records are concerned with Fritz Kahn's unpublished text, entitled The Natural History of Palestine. Included are multiple drafts of chapters, illustrations, notes, and photographs with accompanying material. The collection also contains various drafts of published and unpublished essays and articles, personal and professional correspondence, personal documents, such as diaries and academic records, newspaper clippings, and printed matter