Tin INTKODUCTION. 



Again, the author cannot too deeply acknowledge the assistance 

 which he has received from Messrs. Osbert Salvin and F. Ducane 

 Godman, who have lent him from time to time their excellent series 

 of the American species described in this book, without which 

 service it would have been almost impossible to complete the 

 volume ; Dr. Sclater and Capt. Shelley have also lent him many 

 valuable and rare birds. 



In various ways the author has received valuable assistance and 

 loans of specimens from the following gentlemen : — Pi'of. Newton, 

 Prof. Alphonse Milne-Edwards, Prof. Schlegel, A. 0. Hume, Esq., 

 C.B., Eugene Gates, Esq., Prof. Barboza du Bocage, Col. Godwin- 

 Austen, H. E. Dresser, Esq., Henry Seebohm, Esq., Edward Hargitt, 

 Esq., Canon Tristram, and Count Salvador!. 



As in the preceding volumes, the affixes to the names of donors &c., 

 in the third column of the list of specimens, may be explained as 

 follows:— "[P.]" means "Presented by;" "[C.]"=" Collected by;" 

 " [E.]"=" Obtained by exchange." Where none of these signs are 

 employed, the specimens were purchased. In some cases the sexes 

 of the specimens are enclosed in brackets, as " [ c? ]•" This is to 

 indicate that, although the author has no doubt in his own mind 

 that the specimen is a male, the label attached to the individual 

 bears no indication of the sex. Sometimes, too, the locality of a 

 specimen will be seen enclosed in brackets, as " [New South 

 Wales]." This is intended to show that the specimen is labelled 

 " New South Wales," but the author has reason to doubt the 

 correctness of the locality. 



R. BOWDLEE SHAIIPE. 



British Museum, 

 Dec. 26, 1881. 



