A Treatise On Zoology: Introduction And Protozoa is a comprehensive book written by E. Ray Lankester. The book is divided into two parts: the first part is an introduction to zoology, while the second part covers the study of protozoa. The book is designed to provide a detailed understanding of the principles of zoology and the study of protozoa.The introduction to zoology covers a wide range of topics, including the history of zoology, the classification...