vi PREFACE TO THE &ECOND EDITION. 



This Second Edition presents itself with some im- 

 portant additions. The introductory chapter on the 

 Moral Qualities of the Dog has been preceded by an 

 Inquiry into his disputed Origin — a Summary of his 

 Natural History — and an Account of the principal 

 Varieties into which he is branched out ; all of which 

 will, I hope, prove not uninteresting or unaccept- 

 able to the lovers of the animal in question. ^ 



Every member of society owes, both to his 

 jfriends and to the public, either a direct consistency 

 of conduct, or some statement of the reasons that 

 have occasioned a departure therefrom. Under the 

 guidance of this sentiment, in the former edition, I 

 entered into a detailed account of- circumstances 

 which (for the purpose of..introdudng more import- 

 ant matter) I have now condensed into the few fol- 

 lowing apologetical facts : — 



As it is pretty, generally understood that I was 

 regularly educated to the practice of human medi^ 

 cine, so some surprise and inquiry have been ex- 

 cited relative to the motives that influenced my de- 

 parture from the regular track of my profession, to 



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