PREFACE. XI 



the present volume, which have not been pre- 

 viously published. But the author has not put 

 them forward as his. His object is not to appear 

 a naturalist himself, but to show how delightful, 

 and how profitable, it would be, if all would be 

 their own naturalists , and go to the living foun- 

 tain instead of the stagnant pool. 



Bank of the Thames, 

 Nov. 1829. 



