'Trees of the Northern United States' is an essential guide for anyone looking to identify and appreciate the many species of trees found in the region. Written by experienced teacher A. C. Apgar, this book is designed for those with little scientific knowledge, but a keen interest in the natural world. Unlike many botanical guides, 'Trees of the Northern United States' focuses on parts of the tree that can be studied year-round, making it accessible to teachers and students alike. With detailed descriptions and illustrations drawn from nature, this book covers both native and cultivated species, including many from the Southern States and Pacific coast.