When Farley Mowat's publisher asked him to write a book about Dian Fossey, he almost refused. It was the discovery of Fossey's diaries that changed Mowat's mind about her. And it is her musings that make Virunga: The Passion of Dian Fossey a powerful and engrossing tribute. 1987 (CP/Bill Becker) FARLEY MOWAT