TOM BROWN'S FIELD GUIDE TO NATURE OBSERVATION AND TRACKING by Tom Brown Jnr. 1983 / 272 pages. 

This is the second handbook in the acclaimed series by the director of the world-famous Tracking, Nature and Wilderness Survival School. Tom Brown passes on to you the matchless lore of the First Americans and teaches you the basics of sight, smell and taste; he shows you how to become one with nature, and how to receive all the signs and signals of the multitude of living creatures with whom we share the beauty and bounty of the wilderness. 'How to restore to your senses all the amazing powers stolen away by civilization. How to move as silently as the Native Americans once did. How to spot and identify the tracks of a vast variety of animals. How to find humans lost in the wilderness.'