The mere fact of my having written tEese papers Eag put me 

 into communication with fellow lovers of nature, and has given me 

 access to standard works, so that I have been able to correctly identify 

 most of the species mentioned. I am deeply indebted to Mr. J. D. 

 de La Touche, C.M.Z.S., M.B.O.U., who very kindly allowed me to 

 go over his wonderful collection of Chinese Birds, than which none 

 more complete exist, except that iu the British Museum. I am also 

 indebted to Mr. Oldfield Thomas, F.R.S., F-Z.S., of the British 

 Museum, and to Dr. Gerrit S. Miller, of the Smithsonian Institution, 

 for assistance in the identification of many new mammals of North 

 China, while Dr. Morrison, by allowing me access to his magnificent 

 library, enabled me to further identify and verify the names of many 

 of the old ones. The following gentlemen very kindly suppHed me 

 with photographs, without which the illustrations would have been 

 far from complete— Dr. P. H. Atwood, Mr. Malcolm P. Anderson, 

 Captain T. Holcomb and Mr. W. A. Mace. To all these kind friends 

 I wish to convey my heartiest thanks. 



ARTHUR DE C. SOWERBY. 



Tientsin, North China, July, 1914. 



