a rapidly evolving field. The opening of this publication begins with acknowledgments and a preface by R. Bowdler Sharpe, who emphasizes the increasing knowledge in the field since previous writings about monkeys. Forbes discusses the significance of anatomical understanding in classifying and describing the various species of Primates, which include lemurs and apes. He outlines the structure of the book, indicating the detailed examination of the Lemuroid sub-order and their unique characteristics. The introduction sets the stage for a thorough investigation into the evolution and diversity of Primates, asserting their place in the animal kingdom, thus establishing a rich context for the scientific discourse that follows. (This is an automatically generated summary.)