yiii INTEODTTCTION. 



The special thanks of the Author for valuable assistance and loan 

 of specimens are due to the Marquis of Huntly, Prof. Peters, Dr. 

 Otto Finsch, Dr. Cabanis, Prof. Barboza du Bocage, Dr. Dubois, 

 Count Salvadori, Messrs. Salvin and Godman, G. GiUett, H. E. 

 Dresser, Basil Brooke, and Canon Tristram. 



It remains only to explain the affixes to the names of the persons 

 from whom the specimens were obtained. "[P.]" means "Pre- 

 sented by;" «[C.]" = "CoUected by;" »[E.]"=" Obtained by 

 exchange." 



R. B. SHARPE. 



British Museum, 

 June 1, 1874. 



