EDITORS 
JOHN M. COULTER, Zie University of Chicago, Chicago, Hil 
CHARLES: x. BARNES, University of Wisconsin, Madison, Wi 
eo C ARTHUR, Purdue University, Lafayette, Ind. 
"ASSOCIATE EDITORS — 
: GEORGE F. ATKINSON é - FRIT Zz NOLL 
; Cornell University — nk 
CASIMIR 1 DeCANDOLLE 
