This book offers a wide-ranging insight into the zoological explorations of North America from the early 1900s up until 1914. The author references a wealth of scientific works to provide a detailed overview of the known species of the day, their characteristics, and their distribution across North America. It includes research on vertebrates and invertebrates, with a particular focus on insects, birds, mammals, and fish. The book also explores the conservation issues, hunting practices, and natural history surrounding these species, providing valuable insights into the history of zoological research and the evolving understanding of North American wildlife.