The papers consist of correspondence, writings, addresses, notes and research materials, subject files, memorabilia, and photographs relating to G. Evelyn Hutchinson's work as a zoologist and limnologist. The papers highlight his years on the faculty at Yale University but also document his student days at Cambridge University and his early career in South Africa. Of note are materials from his travels as part of the Yale North India Expedition. The collection includes personal papers relating to various members of the Hutchinson family.