That am Mibscqueiit addition-, to the list be interpolated in 

 systematic order, and bear the number of the species immediately 

 preceding, with the addition of a figure i. j. etc.. a- tile ease max 

 re(iuire . separated In mi the original number by a period or decimal 

 point. thus s^ivini;- the interpolated number a decimal form 

 24,^.1. etc.), in order that the original number^ ma\- be ])ermanent. 



For the convenience of tlue who may not have the original 

 edition of the A. < ). I". Check-List, it may be -tated that the 

 .cordance >;i\'e> the e(juivak-nt numbers of pre\'iotis check- 

 lists, in chronological urcler : B=Baird. 1858;' C=Coue.^. i^;.,: 

 R=Ridj;\vay. 1880; C=Coues, [882. 



In the present edition the li-4 of Fo-^il Bird> ha^ been 

 omitteil, and a list of Xaturalixed Species has been added. 



J. A. Al.I.KN, 



WILLIAM BKKWSTKK. 



I'J.I.IoTT Cnri 



C. HART MKKKIAM. 



ROIJI-IKT RlDf.WAV. 



o>! 1'nMicalion. 



