JEDitorial Staff 



GARY N. CALKINS Columbia University. 



E. G. CON KLIN Princeton University. 



M. H. JACOBS University of Pennsylvania. 



FRANK R. LILLIE 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. 



C. R. MOORE The University of Chicago. 



All communications and manuscripts should be sent to the Man- 

 Editor, the University of Chicago, Sept. I5th to June I5th, or 

 to r>i< (logical Bulletin, Woods Hole, Mass., June I5th to Sept. I5th. 

 Subscriptions and other matter should be addressed to the Biological 

 Bulletin, Prince and Lemon Streets, Lancaster, Pa. 



