58 
GRADUATE STUDENTS AND INDEPENDENT INVESTIGATORS 
ENROLLED DurineG 1939 
Mr. Paul F. Brandwein has completed his studies for the degree 
of Doctor of Philosophy at New York University. He presented 
as his thesis “‘ Infection studies on the covered smut of oats with 
special reference to the effective period of infection.” Tlis ex- 
periments were carried out over a period of years, and involved 
the detailed study of the behavior of large numbers of individual 
seedlings under the varied conditions of the experiments. 
A. Friedman has continued his studies on the 
Mr. Bernard 
Ife has isolated many cultures from 
soft rot of Witloof chicory. 
diseased plants and made a careful comparison of their char- 
acteristics. Some Witloof chicory plants were grown during the 
past year for infection experiments. 
Mr. Arthur Davidoff and Miss Jean P. Walther, graduate stu- 
dents in New York University, have enrolled for research in 
mycology and pathology. 
Prof. Laura A. Kolk, Biology Department, 
aboratory facilities for studies on the germi- 
ected in the vicinity of New York 
srooklyn College, 
has used some of our | 
nation of several grass smuts col 
City. 
Dr. Sylvia Colla, a graduate of the University of Turin, for 
cen engaged in the investigation of the value 
Some of her in- 
— 
— 
several years has 
of chemicals in stimulating root production. 
vestigations were carried on in Italy and others in the Argentine. 
During the past year she spent some time in our laboratory, carry- 
ing on further experiments along these lines. 
CHESTNUT BREEDING Work IN 1939 * 
By ArtrHur HARMOUNT GRAVES 
The object of this work is to develop, by breeding, a new chest- 
nut tree of a type suitable for timber, which, at the same time, shall 
be practically immune to the blight caused by the fungus, Hidothia 
parasitica. The reason for, and methods of this breeding have 
* A more detailed account will be published in a forthcoming issue of the 
Bulletin of the Torrey Botanical Club. 
