Editorial Staff 



GARY N. CALKINS Columbia University. 



E. G. CONKLIN Princeton University. 

 M. H. JACOBS University of Pennsylvania. 



C. R. MOORE University of Chicago. 



GEORGE T. MOORE The Missouri Botanic Garden. 



T. H. MORGAN Columbia University. 



W. M. WHEELER Harvard University. 



E. B. WILSON Columbia University. 



FRANK R. LILLIE The University of Chicago. 



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 .11. I -Mi tor, the University of Chicago, Sept. i v =;th to June i.sth, or 

 \VHd- Hole, Mass., June I5th to Sept. isth. Subscriptions and other 

 matter should be adduced to the Biological Bulletin, Prince and 

 Streets, Lancaster, Pa. 



