File contains the manuscript written by Freedman (as W. Freedman) and T.C. Hutchinson, for the Conference on Prevention and Control of Oil Pollution; San Francisco, 1975.
File contains 73 photographs taken by Bill Freedman at the sites of small, controlled, experimental oil spills near Tuktoyaktuk (Pingo, Point, Meadow, Lupin), predominantly from 1973 and 1974. Also includes some photos from similar experiments at Cape Parry. Photographs document experimentation of regrowth of vegetation in response to small-scale oil spills.
File contains 37 photographs taken by Bill Freedman in the vicinity of Tuktoyaktuk, NT, in 1986. Photographs document experimentation of regrowth of vegetation in response to small-scale oil spills, at the Split Pingo spray plot and Meadow spill sites.
File contains 8 transparencies created by Bill Freedman, likely in the early-1980s. Transparencies provide data related to the effects of an oil spill on vegetation (based on Freedman's 1974 fieldwork near Tuktoyaktuk).