Download or read book An Introduction to the Study of Zoology, Illustrated by the Crayfish written by Thomas Henry Huxley and published by . This book was released on 1897 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In writing this book about Crayfishes it has not been my intention to compose a zoological monograph on that group of animals ... I have desired, in fact, to show how the careful study of one of the commonest and most insignificant of animals, leads us, step by step, from every-day knowledge to the widest generalizations and most difficult problems of zoology; and indeed, of biological science in general."--The Preface