(453) 
Erie and marshes along the Seneca River near Savannah 
and Weedsport, New York, were also visited. Plants 
typical of the various forms of Hibiscus found at various 
localities were obtained and are now planted in the experi- 
mental plots. Further prosecution of field studies are 
highly desirable. 
The display plantings of tulips have been utilized in 
observations on blindness, on development of rots, and on 
the appearance of excessive and abnormal growth. Some 
points of practical interest have been determined regarding 
methods of treatment and the value of various varieties 
for this locality. 
During the year five articles, three of which are contri- 
butions, have been published covering various phases of 
research. Three other articles have been submitted for 
publication. 
Special Investigators, Students, and Scholars 
Of the visiting investigators in residence during part of 
the year mention should be made of Professor Henri Hus, 
Professor John W. Ritchie, and Mr. C. H. E. Redding. 
The two last-named have pursued experimental studies 
necessitating use of space in greenhouse and experimental 
plots. Numerous persons have spent various periods of 
time at the Garden, especially in studies in the herbarium 
or the library. 
Facilities of experimental plots were used by Professor 
R. A. Harper in growing corn for studies in heredity and 
by Mr. Raines for growing cereals in prosecuting studies of 
rust infections. 
LisT OF STUDENTS 
The following were formally registered as students 
pursuing studies in most cases for degrees. All satisfied 
tuition charges either at Columbia University or at the 
Garden: 
Apams, JaMES Fow.er. Pathol 
BERMAN, FLORENCE JULIA. ne in Tusstlago. 
