420 THE BIOLOGY OF BIRDS 



LiLLiE, F. R. The Development of the Chick. 1906. 



Marey, E. J, Le Vol des Oiseaux. 



Massingham, H. J. Poems about Birds : from the Middle Ages 



to the presetit day. Also : Some Birds of the Countryside. 



London, 1921. 

 Mitchell, P. Chalmers. The Childhood of Animals. 

 Morgan, C. Lloyd. Animal Life and Intelligence. 1890, 



pp. 512. 

 Habtt and Instinct. 1896, pp. 351. 



Newton, A. Dictionary of Birds. 1 893-1 896. 



Parker, T. J., and Haswell, W. A. Textbook of Zoology, 2 Vols. 

 Pycraft, W. p. a History of Birds. 1910. Also : Story of 

 Bird Life. London, 1900. 



The Courtship of Animals. 1913. 



Birds in Flight. 1923. 



Robinson, Phil. The Poets' Birds. 



Saunders, Howard. Illustrated Manual of British Birds, 6th ed. 



1899. 

 Sedgwick, A. Student's Textbook of Zoology, 3 Vols. 

 Seebohm, H. Coloured Figures of the Eggs of British Birds. 1896. 



Thayer, G. H. Concealing-Coloration in the Animal Kingdom. 



1909. 

 Thomson, A. L. Britain's Birds and their Nests. 1910. 



Washburn, M. F. The Animal Mind. 1909, pp. 333. 

 Watson, J. B. Behaviour : an Introduction to Comparative 



Psychology. 19 14. 

 Witchell, C. a. The Evolution of Bird-Song. 

 Cries and Calls of Wild Birds. 



II. BOOKS AND PAPERS REFERRED TO IN THE 



TEXT 



Allen, J. A. On the Mammals and Winter Birds of East 

 Florida, with an Examination of certain assumed Specific 

 Characters in Birds. Bulletin Museum Comparative 

 Zoology, Harvard, 1871. [A study of variation in Nature.] 



