BMtorial Staft 



E. G. CoTsiKLiN— Princeton University. 



Jacques LoEB — The Rockefeller Institute for Medical Research 



T. H. Morgan — Columbia University. 



W. M. Wheeler — Harvard University. 



E. B. Wilson^ — Columbia University. 



iTlDanaGing Bbitor 



Fraistk R. Lillie — -The University oj 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 Queen Street, 

 Lancaster, Pa. 



