lEMtoml State. 



E. G. CoNKLlN — Princeton University. 

 Jacques Loeb — -The University of California. 

 T. H. Morgan — Columbia University. 

 W. M. Wheeler — Harvard University. 

 CO. Whitman — The University of Chicago. 

 E. B. Wilson — Col7imbia Ujiiversity. 



/IftanagiuG BMtot. 



Frank R. Lillie — The University of Chicago. 



All communications and manuscripts should be sent to the Managing- 

 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, 41 North Qiieen Street, 

 Lancaster, Pa. 



