A field key to the genera of the wild and cultivated hardy trees of the northeastern United States and Canada. This book, "A field key to the genera of the wild and cultivated hardy trees of the northeastern United States and Canada. Volume 2", by Mary Franklin Barrett, is a replication of a book originally published before 1931. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.