Abstract This collection contains project files, publications, photographs, and other material regarding the career of Dr. Frederick F. Halma, professor of subtropical horticulture at the University of California, Los Angeles (UCLA) and research scientist at the Citrus Experiment Station in Riverside, California. Includes lecture notes, examinations, photographs and other material from Halma's Horticulture 102 class as well as handwritten field notes and publications regarding his citrus/avocado...