vi' author's preface. 



many original observations on the subject of habits. Thanks 

 are also due to Mr. J. E. Harting, from whose numerous papers 

 on British Mammals, especially his volume on the species 

 recently exterminated from our islands, and also his Report on 

 the " Vole-Plague," a large amount of matter has been culled. 

 My acknowledgments must likewise be tendered to Mr. A. G. 

 More, of the Dublin Museum, for much important informa- 

 tion kindly communicated by letter on the subject of Irish 

 Mammals. 



Although attention has been especially directed to the sub- 

 ject of distribution, it has not been deemed necessary to give 

 the name of every county from which the more uncommon 

 species have been recorded. 



RICHARD LYDEKKER. 



