BEITISH LIZAEDS 



CHAPTER I 



INTRODUCTORY 



HOW TO DESCRIBE AN ANIMAL DISTRIBUTION 



MORPHOLOGY PHYSIOLOGY REPRODUCTION 



EMBRYOLOGY PALEONTOLOGY SPECIFIC CHAR- 

 ACTERS EVOLUTION. 



Before entering upon the detailed account of the 

 lizards found in the British Isles it will be well to 

 indicate what would be necessary in order to give a 

 complete picture of these reptiles. That is to say, we 

 should have a very clear idea of what is involved in 

 the full description of any animal, because such a 

 description does not come within the province of the 

 field naturalist for whom this book is specially in- 

 tended. There are but few people who realise how 

 many various aspects of animal life must be taken 

 into consideration in order to see that life as a whole. 



