BC)ttonal Staff 



E. G. CoNKLiN — Princeton University. 



jAcquKS LoEB— - The Rockefeller Institute for Medical Research 



George T. Moore — The Missouri Botafiic Garden. 



T. H. Morgan— Co/ww^/a University. 



W. M. Wheeler — Harvard University. 



E. B. VJ \i.soi>i— Columbia University. 



/IDanaatna lEMtot 



Frank 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, \\. North Queen Street, 

 Lancaster, Pa. 



