On The Philanthidae Of North America is a scientific book written by Ezra Townsend Cresson in 1865. The book focuses on the Philanthidae family of bees found in North America. Cresson provides a detailed description of the different species of bees in this family, including their physical characteristics, behavior, and habitat. The book also includes illustrations and diagrams to help readers better understand the bees and their environment. Cresson's...