First leafing and flowering, a total of 14 phenological events, for woody plants on or near the St. Paul Campus of the University recorded by Prof. A. C. Hodson (1906-1996) during a 51-year period (1941-1991).
Three notebooks of handwritten data regarding fourteen plant phenological events from 1941 to 1960 in and around the St. Paul Campus of the University of Minnesota collected by Professor Alexander C. Hodson (1906-1996), who was Head of the Department of Entomology, Fisheries and Wildlife at the University from 1960-1974.
