17 
Joseph Rosenbaum: “The Phytophthora disease of ginseng.” 
Constantine Demetry Sherbakoff: “ Fusaria of potatoes.” 
James Kennith Wilson: “ Physiological studies of Bacillus radi- 
cicola of soy bean (Sojus max Piper) and of factors influencing 
nodule production.” 
Tue Jouns Hopkins UNIVERSITY 
John Wesley Shive: “A study of physiological balance in nu- 
trient media resulting in a simplified culture solution for plants.” 
YALE UNIVERSITY 
Isaac Faust Harris: “ Chemical and physiological studies of the 
castor bean and soy bean.” 
Henry Daggett Hooker, Jr.: “ Thermotropism and hydrotro- 
pism.” 
Unrversity oF ILLINOIS 
Demetrius Ion Andronescu: “The physiology of the pollen of 
Zea Mays with special regard to vitality.” 
George Leo Peltier: “ Parasitic Rhizoctonias in America.” 
Frank Archibald Wyatt: “The influence of calcium and mag- 
nesium compounds on plant growth.” 
UNIVERSITY OF CALIFORNIA 
Helen Margaret Gilkey: “A revision of the Tuberales of Cali- 
fornia.” 
Richard Morris Holman: “The orientation of terrestial roots 
with particular reference to the medium in which they are grown.” 
Harry Stanley Yates: “ The comparative histology of certain 
California Boletaceae.” 
UNIVERSITY OF MICHIGAN 
George Herbert Coons: “A study of the factors involved in 
the growth and pycnidia formations of Plenodomus Fusco- 
Maculans.” 
Adrian John Pieters: “The relation between vegetative vigor 
and reproduction in some Saprolegniaceae.” 
