Manual of the Trees of North America (exclusive of Mexico) 2nd Ed.

A scientific publication written in the early 20th century. This comprehensive manual serves as an authoritative guide for the identification, classification, and study of the various tree species across North America, excluding Mexico. It is particularly focused on the extensive knowledge gathered through the Arnold Arboretum, detailing characteristics, distributions, and illustrations of numerous tree species. At the start of the manual, Sargent introduces the second edition, highlighting significant advancements in botanical knowledge since the first edition was published. He outlines the new species added, nomenclature updates based on recent international standards, and the collaborative contributions from various botanists who have studied North American trees. This foundational section sets the tone for the extensive exploration of tree families and genera that follows, demonstrating Sargent's commitment to increasing understanding of the rich diversity of trees in the region. The initial chapters also include analytical keys to identify trees based on their features, which will aid readers in navigating the text effectively.