( 224) 
Special Investigations. 
The following alphabetical list contains the names of all 
persons to whom the privileges of the Garden have been 
granted for extended periods during the year, together with 
brief notes as to the special investigations pursued while in 
residence. 
JosupH CuHaritzs Artuur. Iowa State College, B.S., 1872; 
M.S., 1877; Cornell University, D.Sc., 1886. Professor of 
Plant Physiology and Pathology, Purdue University, and Bot- 
anist to the Agricultural Experiment Station. 
Cultural and morphological investigation of the plant rusts. 
Harriet Brown BAILey. 
The flora of northeastern America with special attention to the 
mosses of this region. 
Howarp James Banker. Syracuse University, A.B., 1892; 
Columbia University, A.M., 1900. Instructor in the South- 
western State Normal School, California, Penn. 
A study of the Hydnaceae. 
Mary FRANKLIN BARRETT. Smith College, B.L., rgor. 
Taxonomy of the Tremellales. 
ELIZABETH BILLINGS. 
A systematic study of the grasses of Vermont. 
Laura Baker Broomaty. University of Michigan, B.S., 1898. 
Embryology of certain seed-plants. 
CuarLtes Tuomas Bruges. University of Texas, B.S., 1901; 
M.S., 1902. 
General morphology of the algae. 
EstuEr Fussett Byrnes. Bryn Mawr College, A.B., 1891; 
A.M., 1894; Ph.D., 1898. Instructor in biology in Girls’ 
High School, Brooklyn, N. Y. 
An investigation of the factors which determine sex in dioecious 
plants. 
Witiram Austin Cannon. Stanford University, A.B., 1899; 
.M., 1900; Columbia University, Ph.D., 1902. Later ap- 
pointed resident investigator, Desert Botanical Laboratory of 
the Carnegie Institution, Tucson, Arizona. 
Spermatogenesis of hybrids. 
