NORTH OF 50°: AN ATLAS OF FAR NORTHERN ONTARIO. University of Toronto, Dept. of Geography. Toronto, University of Toronto Press, c1985. 119pp, cloth, $65.00, ISBN 0-8020-3387-3.CIP Grades 12 and up Reviewed by Robin Lewis Volume 14 Number 3 1986 May The Royal Commission on the Northern Environment was established in 1977 in the wake of a controversy involving Reed Ltd., pulp and paper development, and mercury pollution of Ontario rivers. This atlas was created by the commission to provide information to all groups concerned with far northern development. Cartography was undertaken by Geoffrey Matthews and the University of Toronto's fine department of geography. The work of some of these people is well-known to teachers from their excellent school atlas, Canada and the World: An Atlas Resource.* In North of 50°, climate, soil, vegetation, bird life, fish and their fresh water habitat, environmental sensitivity, human population statistics, medical facilities, and commercial trapping activity are some of the topics. Maps are clear. Most have marginal explanatory notes. Type has been so well-chosen that even the fine print appears bold. The heavy paper is printed on one side only. The durable binding suits the large size of the book. Appendices of special interest give scientific names of local plants, a long list of native birds, and brief profiles of Indian reserves and unincorporated settlements. North of 50° could only be compared to Le Nord du Quebec: profil regional. Various publications may give more detail on any one topic, soils, for example, but no book on northern Ontario matches North of 50º for its variety, its ecological perspective, or the utility and beauty of its cartography. Senior high school students might enjoy parts of this book, but its main users will be college students, planners, developers, and teachers. The price is high, but reasonable. Robin Lewis, Riverdale H.S., Pierrefonds, Que. •Reviewed XIH/4 July 1985 p. 167.