You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Mackinac Island [by dock near east breakwater, fide WRO in litt. xi/7/91]. Remove constraint Place: Mackinac Island [by dock near east breakwater, fide WRO in litt. xi/7/91]. Topic Euphorbia Remove constraint Topic: Euphorbia Type still image Remove constraint Type: still image