JOURNAL 



OF 



MORPHOLOGY 



EDITED BY 



C. O. WHITMAN 

 University of Chicago 



WITH THE CO-OPERATION OF 



EDWARD PHELPS ALLIS 



Milwaukee 



HOWARD AYERS 



UXIVERSITV OF CiNCIXXATI 



E. G. CONKLIN 



UXIVERSITY OF PeNXSVLVANIA 



F. R. LILLIE 

 University of Chicago 



T. H. MORGAN 

 Brvn Mawr College 



E. B. WILSON 



Columbia Uxiversitv 



Volume XVL 



LANCASTER, PA., U. S. A. 



The New Era Printing Company 



1903 



