The Encyclopaedia of Life Sciences is carefully organized and written in scholarly and comprehensive language. It combines the usefulness of a reference work with the readability of a browsing book, perfect for any one attuned to the splender of our material World. It emphasizes the salient facts of anatomical, [histological, embryological, physiological and evolutionary concept of various facets of animals. New concepts and early ideas are brought together to secure an integrated approach to facts and principles. It provides a new look at a wide range of problems in vertebrate as well as higher invertebrate revolution including studies on both fossil and recent species. It will make itself immediate useful to students. It provides a nucleus around which the teacher can plan a successful course without too much bearing on complementary and supplementary readings. The book will be useful to of specialists and will appeal to a wide audience. It is concise, comprehensive and systematic. Even as general a book as this must reflect to a large degree the particular interest of its- authors. The theme of this book is novel a: for the first time the various chapters have been organized reviewing the available literature the various animals. All the chap have been profusely illustrated we photomicrographs, line diagrams graphs and tables. Details of the Volumes: Vol. 1 Mammals Vol. 2 Mammals Vol. 3 Mammals Vol. 4 Mammals Vol. 5 Mammals (Synopsis) Vol. 6 Aves Vol. 7 Aves Vol. 8 Aves Vol. 9 Reptiles Vol. 10 Pisces Vol. 11 Fossil Remains Vol. 12 Mollusca and Radiate Vol. 13 Annelida, Crustacea and Arachinda Vol. 14 Insecta Vol. 15 Insecta Vol. 16 Insecta