PREFACE. 



TnE Fourfch Volume of the ' Catalogue of Birds in the British 



Museum ' has been prepared by Mr. E.. B. Sharpe, one of the 



Senior Assistants in the Zoological Department, and author of 



the three preceding volumes. It contains an account of all the 



species of Campopliagidce and ^lusckajpidce known at present. 



From the author's account it would appear that nearly one fourth 



of the species kno^vn are still unrepresented in the British Museum ; 



and the hojie may be expressed that ornithologists and collectors 



will assist in rendering this part of the National collection more 



complete than it is at present. 



ALBERT GUNTHER, 



Keeper of the Department of Zoohgy. 



British Museum, 

 March 1879. 



