Spray (pesticide), 1928-1931

There are 191 files of correspondence (1924-56) arranged chronologically, then alphabetically within each year or period (e.g. ‘Jan 1928 - May 1929’). Subjects include diseases of ornamental plants, barberry eradication, studies of ascomycetes, and the genetics and microbiology of Neurospora. Several files (1924-28) relate to Dodge’s work with the USDA. The remaining 64 files are arranged alphabetically by subject or correspondent. Eleven files consist of Torrey Botanical Club correspondence, and 21 with the International Microbiological Conference III (1938). Correspondents include George Beadle, Joshua Lederberg, and Carl Lindegren. There is one chronological index (notebook) of correspondence (1938-42). For personal correspondence, see Series 8: Personal Papers.