Books

Positions Bartram’s Illustrations as Central to His Understanding of the Natural World

The Fortieth Anniversary Edition of the Classic Exploration of the Youghiogheny River,Updated with a New Introduction and Epilogue

An Indispensable Field Guide for Professional and Amateur Naturalists With a newly redesigned cover. This extensive, portable guidebook contains behavior and ecological characteristics, Pennsylvania and North American range maps, and photographs of the sixty-three different species of wild mammals that populate Pennsylvania’s hills and valleys.

A Personal Account of the Glorious Spectacle of Spring Coming to the Woods and Fields of Appalachia

A Meditation on Fall’s Fiery Beauty in the Appalachian Mountains

Describes 128 species of butterflies found in the state, along with their caterpillars and pupae. Each species account provides a description and information on distribution, habitat, life history, nectar sources, and larval host plants. Hundreds of color illustrations, as well as detailed drawings and maps. Written for scientists and general enthusiasts alike.

A Celebration of Life That Reaffirms Our Connections to the Natural World

A Charming Chronicle of Shifting Weather and Winter Wildlife Brings Warmth to the Coldest Months of the Year

Examines the conflicts that have developed over the preservation of forests in America, and how government agencies and advocacy groups have influenced the management of forests and their resources for more than a century.

Featuring over 900 color illustrations, Butterflies of Pennsylvania is the most comprehensive, user-friendly field guide to date of all of the species of butterflies and skippers ever recorded in Pennsylvania. Information on distinguishing marks, traits, wingspan, habitat, larval host plants, and handy facts offer assistance for field identification. County-by-county maps show where each species has been recorded, and graphs detail when they are present and most likely to be seen.