10 
D5. Phytogeography.—A course dealing with plant distribution 
over the earth. Prerequisites are courses in plant ecology and 
geology, and a good general knowledge of climatology and system- 
atic botany. 50 credit hours of work. Hours to be arranged. 
Mr. Taylor. 
D6. Seminar and Journal Club.—Irregular meetings of the 
Garden Staff and advanced students, for the discussion of funda- 
mental problems of botany or of general biology, and for the re- 
view of current botanical literature. Open to others on invita- 
tion. 
Graduate Study and Botanical Research* 
D7. Research in Plant Physiology.—Independent investigation 
of problems dealing with plant functions. Dr. Gager. 
D8. Research in Mycology and Plant Pathology.—Independent 
investigation of problems in fungi and fungous diseases of plants. 
Dr. Olive. 
Dg. Research in Plant Genetics.—Independent investigation of 
problems of variation and heredity, including that phase of cy- 
tology having a direct bearing on the subject matter of genetics. 
Dr. White. 
CooPeRATION Wit LocaL ScHoors 
1. Talks at Schools——The principals of public or private 
schools may arrange to have lantern talks given at the schools on 
various topics related to nature study, such as garden work with 
children, tree planting, and Arbor Day. If an illustrated lecture 
is desired, the lantern and operator must be provided by the 
school, but slides will be furnished by the Botanic Garden. Ad- 
dress the Curator of Elementary Instruction for list of talks and 
for appointments. 
* Courses of graduate rank offered by the Botanic Garden, when ap- 
proved by the Faculty of the Graduate School of New York University, 
are listed as courses in the Graduate School, and are given the same credit 
as other graduate courses. Properly qualified students who take these 
courses may present them in satisfaction of the requirements for ad- 
vanced degrees given by the University. Graduate credit has also been 
allowed elsewhere for such advanced work done at the Garden. 
