Permanence and Evolution. 37 



nor the stripes on the young pigs in any 

 ordinary breed, though in the Turkish and 

 Westphalian breeds these last appear with great 

 regularity ; showing that domestication has no 

 tendency of itself to obliterate them, and it does 

 not seem likely that they should have been 

 eliminated by selection for no easily divinable 

 motive ; not to speak of the much larger rela- 

 tive size of the wild boar's head, not only in 

 length, but in all proportions. 



About the origin then of the North European 

 tame pig nothing is known. This race exists, 

 or perhaps I ought to say existed, in various 

 sub-breeds more or less distinguishable. These 

 sub-breeds differ conspicuously in such points 

 as length of the ears and legs, curvature of ribs, 

 colour, etc. They bred very true; for each 

 limited area had its own characteristic sub- 

 breed ; their characters, as Nathusius (" Racen 

 des Schweines," p. 45) remarks, might be made 

 more or less by selection, which does not prove 



