Collins Guide to the Rare Mammals of the World John A. Burton, illustrated by Bruce Pearson William Collins Sons & Co. (London), 1987, 240 pp., HB £12.951988 IUCN Red List of Threatened Animals Prepared by the IUCN Conservation Monitoring Centre, Cambridge, in association with the International Council for Bird Preservation International Union for Conservation of Nature and Natural Resources, 1988, 154 pp. PB £6 or US$12. Available from CMC, 219c Huntingdon Road, Cambridge CB3 ODL (postage and packing extra).