PUBLISHERS' NOTE. 



As circumstances beyond the control of the editor prevent his 

 revision at present of the whole work, that portion embracing the 

 large order Oscines is issued in advance as Part I., to be followed, 

 as soon as practicable, by a second volume, completing the 

 treatise. 



COPYRIGHT, 1881, 

 BY LEE AND SHEPARD. 



All Rights Reserved. 



BOSTON STEREOTYPE FOUNDBY, 

 No. 4 PEARL STREET. 



