PREFACE xiii 



Dr. Wallace and Mr. Darwin have studied the coloration of 

 animals ; but, as far as I am aware, no attempt has been hitherto 

 made to account for certain markings which occur, as one might 

 say, in a sort of plan, and in so many different animals. In 

 these pages I have made an attempt to account, not only for 

 their derivation, but also for their genesis, as far as this can 

 be known. 



I need hardly mention that the figures of Horses were not 

 selected for their beauty of outline, but for their dappling. Most 

 of the outline drawings are reduced in size. 



My thanks are due to Professor J. M'Fadyean and Mr. P. 

 D. Coghill of the Royal Veterinary College, for helping me with 

 photographs of Horses ; and to Mr. James Poynter of the Horse 

 department of the Great Northern Railway, and Mr. William 

 D. Duff, manager of the London Road Car Company, for their 

 kind permission to photograph some of the horses in the stables 

 of their companies. I have to thank also Messrs. Jeffs and 

 Harris, and Messrs. Back and Co., of Regent Street, for allowing 

 me to have some of the skins in their stores photographed. 

 Finally, my thanks are due to Miss Butcher for numerous out- 

 line drawings of mammals, etc., in the Natural History Museum. 

 Some apology is, I think, due to her for asking her to make 

 drawings of those archaeological exhibitions of Taxidermy. As 

 she remarked, it was difficult to know where their legs ought to 

 be ! The recent specimens in that museum are, however, splendidly 



got up. 



E. BONAVIA. 



