Olaus J. Murie
A Field Guide to Animal Tracks Houghton Mifflin Co.
374 pages, $3.75
For the nature sleuth, camper and lover of the outdoors. A guide to the animals
you didn't see. Contains over 1,000 illustrations and covers all the mammals of
Mexico and North and Central America. This authoritative book, one of the
Peterson Field Guide Series, includes an excellent bibliography and index.