McGucken (history, U. of Southern Indiana) explores how the U.S. and Canada with the aid of an international joint commission diagnosed the introduction of phosphorous as the primary cause of environmental degradation in Lake Erie and the efforts to correct the problem. He describes how a combination of government regulation and public pressure convinced a reluctant detergent industry to produce alternative materials which, in the end, aided in the rehabilitation of Lake Erie. Annotation c. Book News, Inc., Portland, OR (booknews.com)