EMtorfal State 



E. G. Conklin — Princeton University . 



George T. Moore-^- The Missouri Botanic Garden. 



T. H. Morgan — Columbia University. 



W. M. Wheeler — Harvard University. 



E. B. Wilson — Columbia University. 



flDanaaing EMtor 



Frank R. Lillie — The University oj Chicago. 



All communications and manuscripts should be sent to the Man- 

 aging Editor, the University of Chicago, Sept. 15th to June 15th, or 

 Woods Hole, Mass., June 15th to Sept. 15th. Subscriptions and other 

 matter should be addressed to the Biological Bulletin, Prince and 

 Lemon Streets, Lancaster, Pa. 



