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PREFACE. 



SOME few years ago Mr. Loudon wrote to me, 

 in order to draw my attention to his Magazine 

 of Natural History ; and he added in his letter, 

 that he would feel obliged to me for any com- 

 munication that I might send to him from time 

 to time at my convenience. 



I was preparing to set out for the Continent 

 at the time that I received Mr. London's letter. 

 On my return home from Franconia, I did not 

 forget his application relative to the Magazine 

 of Natural History. I owe a debt of gratitude 

 to Mr. Loudon, for the very kind manner in 

 which he has always spoken of the Wanderings, 



and recommended that work to the public. 

 \s 



I had learned, by mere chance, that a pro- 

 fessor in King's College had been applying to 



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