BIRDS OF NEW YORK 



89 



in American ornithology but we have decided to employ it in the 

 present volume, as this is the system most generally familiar here. For 

 the use of those students who do not have access to Sharpe's Hand-List 

 and Ridgway's Catalogue, which unfortunately is not yet completed, we 

 add for comparison the arrangement of the orders of New York birds, 

 numbered in order of sequence, as they appear in the American Ornitholo- 

 gists Union Check-List of 1895, .Sharpe's Hand-List of the Genera and 

 Species of Birds, and Ridgway's Birds of North and Middle America, the 

 latter classification being based i)rincii)ally u])on that of Dr Hans Gadow. 



