Adaptations to Environment 133 



splendid failures which parachuting animals illustrate, we gain 

 an impression of the insurgence of living creatures in their charac- 

 teristic endeavour after fuller well-being. 



We have said enough to show how well adapted many ani- 

 mals are to meet the particular difficulties of the haunt which they 

 tenant. But difficulties and limitations are ever arising afresh, 

 and so one fitness follows on another. It is natural, therefore, to 

 pass to the frequent occurrence of protective resemblance, camou- 

 flage, and mimicry the subject of the next article. 



BIBLIOGRAPHY 



ELMHIRST, R., Animals of the Shore. 



FLATTELY AND WALTON, The Biology of the Shore (1921). 

 FURNEAUX, Life of Ponds and Streams. 



HICKSON, S. J., Story of Life in the Seas and Fauna of the Deep Sea. 

 JOHNSTONE, J., Life in the Sea (Cambridge Manual of Science). 

 MIALL, L. C., Aquatic Insects. 



MURRAY, SIR JOHN, The Ocean (Home University Library). 

 MURRAY, SIR JOHN AND HJORT, DR. J., The Depths of the Ocean. 

 NEWBIOIN, M. I., Life by the Sea Shore. 

 PYCRAFT, W. P., History of Birds. 



SCHARFF, R. F., History of the European Fauna (Contemp. Sci. Series). 

 THOMSON, J. ARTHUR, The Wonder of Life (1914) and The Haunts of 

 Life (1921). 



