EXTERNAL FORM. 



CXlll 



The skin should be soft and expansive, and the bristles soft 

 and approaching to the character of hair. The following 

 figures will shew the surprising deviation from the natural 

 form which the animal, under the influence of domestication, 

 exhibits. The first is an outline of the Old English Sow, 

 exhibiting almost all the characters of external form which 

 breeders study to avoid ; the second is an outline of a cross 

 between a female 'of the Siamese race and a native male of 

 a fine breed, shewing the characters which are held to be 

 good, and the consequent tendency to obesity which these 

 characters indicate. 



Fig. 15. 



Fig. 16. 



The physiological effects have been referred to of breeding 

 from animals nearly allied to one another in blood. When 

 carried to the degree of continually reuniting animals of the 

 nearest affinities, as parents with their offspring, and brothers 

 with sisters, the effect, after a time, is manifested in the im- 



k 



