62 
hybridization has resulted in the production of a considerable F, 
progeny of an interesting cross between the kohlrabi and sprouting 
broccoli. 
Graduate Students and Independent Investigators Enrolled 
During 1931 
Besides the members of the Botanic Garden Staff, several grad- 
n 
me 
uate students and independent investigators were engaged 
carrying on botanical research in the laboratories of the Garden. 
Miss Ffanchon Hart completed, during the summer, a_ thesis, 
based on the study of some diseases of medicinal plants, for the 
degree of Master of Arts at New York University. 
Mr. Charles A. Finnegan is enrolled at New York University 
or a master’s degree and is basing his thesis on a study of the 
trees of the Botanic Garden. 
Mr. I. H. Ponder has enrolled for two courses in plant pathol- 
ogy at the Botanic Garden. He has undertaken some physiologic 
studies on the crown rust of oats, and a special problem in a disease 
of oak trees. He is also enrolled at New York University for the 
master’s degree. He received the Scottish Board of Agriculture 
Diploma from the College of Agriculture, University of Edin- 
burgh. 
Mrs. Marie E. Conklin has undertaken independent investigation 
on the bacteria which form tubercles on the wild legumes. She 
is a graduate of Wellesley College and has continued graduate 
study at the University of Wisconsin. 
Miss Elva Lawton is carrying on her investigations on regenera- 
tion and polyploidy in ferns. The results will be submitted to 
the University of Michigan as a thesis for the degree of Doctor of 
Philosophy. Miss Lawton is an instructor in the Biology De- 
partment of Hunter College. 
Mrs. Jennie L. S. Simpson, Assistant Professor in the Biology 
Department of Hunter College, is continuing investigations on the 
vascular anatomy of Cucurbitaceae. She has received her degree 
of Doctor of Philosophy at McGill University. 
Miss Mollie Sobel, a teacher of biology at Abraham Lincoln 
High School, is studying for a master’s degree at Columbia Uni- 
versity, having graduated from Hunter College. She has under- 
taken a study of the longevity of smut spores as a basis for a 
ja 
— 
thesis. 
