598 On Mr. R. B. Sharpe's Catalogue of Accipitres. 



April, an adult female from Silesia, a young female killed 

 in October on the Volga, and a nestling from Astrachan ■^. 

 Audubon has figured a male American Osprey f ; and a figure 

 of the American bird is also given by Wilson J ; an adult 

 female from Sumatra has been figured by Schlcgel § ; and an 

 adult Australian specimen is represented in the plate given 

 in Gould^s ' Birds of Australia/ 



The observations which I commenced in ' The Ibis ' of 

 1875, in connexion with Mr. Sharpens ' Catalogue of the Ac- 

 cipitres,' have now at length reached their conclusion ; and I 

 feel that many apologies are due to my readers for the pro- 

 lixity and, I fear, the tediousness of this series of Notes. In 

 tendering these apologies I would also offer my best thaifks 

 to the many ornithological friends who, by the liberal loan 

 of specimens, as well as by affording me much important in- 

 formation, have greatly contributed to give my Notes any 

 little value that they may possess. Amongst those who have 

 thus assisted me are some who have passed away from 

 amongst us since my task began, and whom my thanks can 

 now no longer reach; but it is pleasant to recollect their 

 ready aid and their friendly cooperation. 



To Mr. Sharpe my thanks are also greatly due for the 

 pleasure which the study of his pages has afforded me, and 

 for his kindness in allowing me to confer with him on various 

 points as to which I have occasionally felt doubtful. 



I may add that, by the obliging permission of the Editors 

 of ' The Ibis,' I intend to supplement the Notes that I have 

 now concluded by a tabular index, which may, perhaps, prove 

 a convenience, should any ornithological students chance 

 hereafter to desire to refer to them. 



* Vide vol. vi. pp. 386, 387. t Vide B. N. Am. p. 81. 



X Vide Am. Oru. v. pi. 6. fig. 1. § Vide Valkvogels, pi. 5. fig. 3. 



