Audubon Field Guide to New England
Audobon Field Guide to Trees
Tom Brown Jr. Field Guide to Wilderness Survival
Tom Brown Jr. Field Guide to Nature Observation and Tracking
Tom brown Jr. Field Guide to Nature and Wilderness Survival for Children
Tom Brown Jr. Field Guide to Edible and Medicinal Plants
The Science and Art of Tracking by Tom Brown Jr.
Reading the Forested Landscape by Tom Wessels
How to Stay Alive in the Woods by Bradford Angier
Primitive Technology, Ancestral Skills by Society of Primitive Technology
Stalking the Wild Asparagus By Eull Gibbons
Petersons Field Guides, particularly the edible plant guide and medicinal plant guide.
Wilderness living and Survival Skills by John and Gerry McPherson
The Book of Field and Roadside by John Eastman
The Book of Forest and Thicket by John Eastman
American Indian Earthsense- Herbalism of Ethnobotony and Ethnomycology
Earthwise- American Indian Traditional uses of Native Northeaster Trees
Both great books on not just edibility but other uses of plants and trees, available from Institute of American Indian studies in Washington Conn.
Stokes Guide to Animal Tracking and Behaviour by Donald and Lillian Stokes
More to come