“ L. H. Bailey, Jr., “ “ “
“ J. L. Budd, Agricultural College of Iowa.
“ B. D. Halsted, “ “ “
“ E. W. Hilgard, University of California.
“ J. T. Rothrock, University of Pennsylvania.
“ Chas. E. Bessey, University of Nebraska.
“ Wm. Trelease, Shaw School of Botany, St. Louis.
“ T. J. Burrill, University of Illinois.
“ W. W. Bailey, Brown University.
“ E. A. Popenoe, Agricultural College, Kansas.