PREFACE ix 



The frontispiece is from a sketch by Mr. Archibald 

 Thorburn of the Cormorant's rock, a winter scene in St. 

 James's Park. The other full-page pictures are from photo- 

 graphs of birds' nests taken and kindly lent by Mr. H. C. 

 Monro, C.B., Miss Ethel Monro, and Lieut. -Colonel W. H. 

 Duthie. 



The Hands of the Aye-Aye are from a picture by the 

 late Mr. Wolf, published in the Proceedings of the Royal 

 Zoological Society. 



T. D. P. 



LONDON, Oct. 1902. 



