17 
lege course in general botany. 100 credit hours of work. Hours 
to be arranged. Dr. Graves. 
E2. Experimental Evolution.—Detailed studies of the nature 
and causes of variation and heredity. Some of the subjects con- 
sidered are: Historical Résumé of the Evolution Theory, Physical 
Basis of Inheritance, Inheritance of Acquired Characters, Kinds 
and Causes of Variation, Mendelism, Biometry, Principles and 
Technique of Plant Breeding. This course is open to students of 
college rank with a knowledge of the elements of physics, chem- 
istry, geology, botany, and zoology. The work is primarily in- 
tended for students in pure science and for agricultural or horti- 
cultural students fitting themselves for various professional activi- 
ties in these particular fields. Three lectures and two laboratory 
periods a week. 100 credit hours of work. Hours to be arranged. 
Not offered in 1922. Dr. White. 
E3. 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 sys- 
tematic botany. 50 credit hours of work. Hours to be arranged. 
Mr. Taylor. 
E4. Systematic Botany.—The collection, identification, and 
classification of the higher plants. Studies of the collections on 
the grounds, in the conservatories, and in the herbarium. Hours 
to be arranged. Dr. Gundersen. 
Es. Seminar and Journal Club.—Monthly meetings of the Gar- 
den staff and advanced students for the discussion of the scientific 
and educational work carried on at the Garden, and for the review 
of recent outstanding investigations or publications which have 
conspicuously contributed to the advancement of botanical knowl- 
edge. 

Zrii ieee 
E6. Research in Mycology and Plant Pathology.—Independ- 
ent investigation of problems relating to fungi and fungous dis- 
eases of plants. Dr. Reed. 
* Courses of graduate rank offered by the Botanic Garden, when 
proved by the Faculty of the Graduate School of New York Giverny 
are listed as courses in the Graduate School, and are Bei the same credit 
as other graduate courses. Properly qualified students who take these 
