iv PREFACE. 



The first division of the Catalogue contains only such Birds 

 as the Author considers entitled to be admitted into a List of 

 British Birds. The second, the Extinct Species. The third, 

 the principal among the introduced ones. The fourth, those 

 which appear to have been added to our Lists without good 

 cause, and require further investigation. 



In the following Catalogue, when we refer to the History of 

 the Rarer British Birds, our own name is placed after the 

 reference. When we suggest merely a new generic or specific 

 appellation, either the words Mihi or Nobis are used. 



EYTON, January 20, 1836. 



