The following paper on the Ants (Formicidae) of the Expedition, 

 by Theo. Pergande, of the Division of Entomology, U. S. Depart- 

 ment of Agriculture, was originally published in the Proceedings of 

 the Washington Academy of Sciences, vol. n, pp. 519-521, Dec. 20, 

 1900. It is here reprinted from the same electrotype plates, so that it 

 may be quoted exactly as if it were the original. The original pagina- 

 tion has been preserved and transferred to the inner or hinge side of 

 the page, where it is enclosed in brackets, thus [520] ; while the con- 

 secutive pagination of the present volume has been added in the usual 

 place. The present headpiece and title have been substituted for the 

 running heading of the Academy's Proceedings and the original title, 

 which was : Papers from the Harriman Alaska Expedition, xvn. 

 Entomological Residts (//) : Formicidce. No other alterations have 

 been made. 



EDITOR. 



