ESTABLISHMENT OF A NATIONAL BOTANIC GARDEN. 119 



19. Practical garden work. — A summer's work with children in a 

 garden under supervision. This work may be done at the Brooklyn 

 Botanic Garden, or its equivalent in some children's garden the 

 work of which is acceptable to the botanic garden. 



ADVANCED COURSES. 



20. Mycology and plant pathology. — Morphology and pathology 

 of the fungi and bacteria. Life histories of fungi ; methods of con- 

 trol of plant diseases, etc. Prerequisite, a satisfactory college course 

 in general botany. 



21. Fresh-water microdiology. — A course of lectures, recitations, 

 and laboratory work on the various organisms found in drinking 

 water. Odors, colors, etc., of drinking water; methods of micro- 

 scopical and bacteriological examination. 



22. Cytology. — A course of lectures and laboratory work on cell 

 physiology and cell morphology. Methods of cytological technique 

 and practice in accurate interpretation of cell phenomena. 



23. Experimental evolution. — Detailed studies of the nature and 

 causes of variation and heredity. Some of the subjects considered, 

 are historical resume of the evolution theory, physical basis of in- 

 heritance of acquired characters, kinds and causes of variation, 

 mendelism, biometry, principles and technique of plant breeding. 

 This course is open to college students with a knowledge of the ele- 

 ments of physics, chemistry, geology, botany, and zoology. The work 

 is primarily intended for students in pure science and for agricul- 

 tural or horticultural students fitting themselves for various profes- 

 sional activities in these particular fields. 



24. Phyto geography. — A course dealing with plant distribution 

 over the earth. Prerequisites are courses in plant ecology, geology, 

 and a good general knowledge of climatology and systematic botany. 



DEPARTMENT OF GRADUATE STUDY AND RESEARCH. 



25. Seminar. — A biweekly meeting of the garden staff and ad- 

 vanced students for the discussion of fundamental problems of 

 botany or of general biology. 



26. Journal club.- — A biweekly meeting of the garden staff and ad- 

 vanced students for the review and discussion of current botanical 

 literature. Open to others on invitation. 



27. Research in plant physiology. — Independent investigation of 

 problems of plant metabolism and irritability. 



28. Research in mycology and plant pathology . — Independent in- 

 vestigation of problems in fungi and fungous diseases of plants. 



29. Reserach in plant genetics. — Independent investigation of 

 problems of variation and heredity, including that phase of cytology 

 having a direct bearing on the subject matter of genetics. 



COOPERATION WITH LOCAL SCHOOLS. 



(a) Talks at schools. — The principals of any school, public or 

 private, may arrange with the director to have lantern talks given at 

 the schools on various topics related to nature study, such as garden 



