145 



April 20. Effects of radium rays on plants. Annual Science 

 Dinner, Xew York Association of Hiology Teachers. Al- 

 dine Club, New York. 



April 27. Effects of radumi rays on plants. Polytechnic Chem- 

 ical Society (Student Branch), American Institute of 

 Chemical Engineers, Brooklyn Chaml)er of Commerce. 



Ju.ne 5. Gardens within a Garden. Women's League. Ocean 

 Avenue Congregational Church, I'rooklyn. 



October 4. Early botanical education in American Colleges, 

 zvith special reference to Ji' omen's Colleges. The Phi Beta 

 Kappa Alumnae in New York. Columbia University. 



November 23. Tlie Y. W. C. A. and t!ie Community. Central 

 Y. W. C. A. Ikiilding, Brooklyn 



December (j. Gardens zvitJiin a Garden. New Rochelle Carden 

 Club. New Rochelle. 



By the Curator of Public Instruction : 



February 8. Investigations on tJie chestnut bark disease. Be- 

 fore the National Shade I'ree Conference. At the Garden. 



March 2. Eungous diseases of forest trees. To biology de- 

 partments of Ilaaren and Newtown High Schools. At the 

 Garden. 



March ig. 26; Ai)ril g, :6, 2Ti. 30; IMay 7, t6. 2T. Tlie classi- 

 fication of plants. Biology class, ^Taxwell l^'aining School 

 for teachers. 



April 18. ResearcJi at the Brooklyn Botanic Garden. College 

 of the City of New York, Brooklyn Branch. 



IMay 8. /Irbor Day, Conservation, and Brooklyn. Boys High 

 School, Wavcrly Annex. 



Se])tember 12. Tlie present status of the chestnut in North 

 America. Northern Nut (irowers .Association annual meet- 

 ing. Hotel Pennsylvania, New ^^ork City. 



Se])tember ig. Vegetative propagation. Girls Commercial 

 High School. -Advanced biology class. At the Garden. 



Octol:)er 2g. Tlie elieviical side of plant life. Hunter College 

 Chemistry Club. Annex, 145 E. 32d St., Manhattan. 



November 22. TJie evolution of plants. Biology class. Girls 

 Commercial High School. At the Garden. 



December 5. The cultural value of tlie .^tudy of natural sci- 

 ences. Boys High School, Waverly Annex. 

 11 



