PREFACE. XXI 



I unaccountably omitted the name of 

 Marmaduke Tunstall, Esquire, of Wycliff, 

 in Yorkshire, which I must now add to 

 the said list ; the excellency of his moral 

 character, his uncommon liberality, and 

 his deep skill and zeal in the study of na- 

 tural history, made his loss most sincerely 

 lamented by all who had the happiness of 

 his acquaintance. At the same time I 

 regret my particular misfortune, I grate- 

 fully acknowlege the benefit I received 

 from his posthumous works. He did my 

 History of Quadrupeds and my British 

 Zoology, the honor of bestowing much 

 time in illustrating them with notes. These 

 his relative, Edward Constable, of Burton 

 Constable, has, with great liberality, in- 

 trusted me with. The following pages 

 will receive from them the utmost im- 

 provement. At the time I acknowlege 

 the favor, I feelingly regret the loss of 

 our common friend. 



In the prosecution of our plan, we shall, 

 to avoid the perplexity arising from form- 

 ing a new system, adopt (as far as relates 



