FROM the foregoing outline of the principal members of the backboned family of animals and their methods of living, the reader may go on to a number of books dealing more fully with the subject, or with specialised aspects of it. Those who desire a general work dealing with the distribution, habits and
appearance of vertebrates will find Wild Life of the World by R. Lydekker a very comprehensive book. It is admirably illustrated with drawings by Kuhnert. Sooner or later the angle of geographical distribution needs to be approached, and here another book by Lydekker, Geographical History of Mammals, deals very lucidly with the subject.
When information regarding particular sections or vertebrates is desired, The Dictionary of Birds by C. Black and The Reptiles of the World by R. L. Ditmars will be found very helpful. The Childhood of Animals by Chalmers Mitchell makes a very good beginning to the study of birds and mammals in their early stages, and is very suggestive of fresh avenues for further reading. African Nature Notes by F. C. Selous is also to be recommended, as it contains many items of knowledge obtained at first hand.