Abstract The William T. Horne Memorial Avocado Collection contains administrative records, correspondence, clippings, photographs, publications, and other material pertaining to the Citrus Experiment Station agricultural library, citrus and avocado related research, and the citrus and avocado commercial industries. Topics include avocado growing and growers' associations, the production and marketing of avocados, and the scientific study of avocado plants. Records document the development and use of...