PEEFACE TO SECOND EDITION 



The present edition is a reprint of the first, with a few verbal 

 corrections and the alteration of some erroneous or doubtful 

 statements. Of these latter the following are the most 

 important : — 



P. 30. The statement as to the fulmar petrel, which 

 Professor A. Newton assures me is erroneous, 

 has been modified. 



e* 



P. 34. A note is added as to Darwin's statement about 

 the missel and song-thrushes in Scotland. 



P. 172. An error as to the differently-coloured herds of 

 cattle in the Falkland Islands, is corrected. 



Paukstone, Dorset 

 August, 1889. 



