to be Assistant Professor in 1891, Associate Professor in 1904, Professor in 1913, and was named Emeritus Professor upon his retirement in 1930. Proposal on the use of Drosophila Woodworth is credited with first breeding Drosophila in quantity while he was at Harvard. Thomas Hunt Morgan's Nobel Prize biography says that Woodworth suggested to William E. Castle that Drosophila might be used for genetical work. Castle and his associates used it for their work on the effects of inbreeding, and through them F. E. Lutz became interested in it and the latter introduced it to Morgan, who was looking for a species that could be bred in the very limited space at his command. Four years in China While on sabbatical leave in 1918, he was a lecturer at the University of Nanking and honorary professor of entomology at the National Southeastern University at Nanking, China. During his year there he effected a practical control of mosquitoes for the first time in that city's history. He returned for a three-year period in 1921–1924. During this period he organized the Kiangsu Provincial Bureau of Entomology as well as many other things. In the words of the president of the University of Nanking, "He served China in a magnificent way." Publications and policy efforts His publications were very extensive and included nearly every field of entomology. A few of his most outstanding works are: "A List of the Insects of California (1903), The Wing Veins of Insects" (1906), "Guide to California Insects" (1913), and "School of Fumigation" (1915). He was the first editor and first contributor to the University of California Publications in Entomology. He had much to do with the responsible use of pesticides. He proposed and drafted the first California Insecticide Law in 1906, was largely instrumental in securing its passage in 1911, and administered the law until July 1, 1923. Entomological campaigns which he conducted in California concerned the codling moth, the peach twig-borer, citrus insects, grasshoppers, and citrus white fly eradication. Family and home Charles and Leonora had four children: Lawrence, Harold, Charles, and Elizabeth. His son, Dr. Charles E. Woodworth, also became an entomologist; he worked for the USDA ARS focusing on the wireworm and served as an entomologist with the Army in the Pacific during World War II with the rank of Major, commanding a unit which cleared swamps. Their home at 2237 Carleton Street in