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October 1. ‘¢ The Origin of Species as Illustrated by the 
Evening Primroses,” by Professor Hugo de Vries. 
October 8. ‘¢ The Botanical Exploration of the Bahamas,” 
by Dr. N. L. Britton. 
October 15. ‘*A Summer at the Desert Laboratory,” b 
Professor Francis E. Lloyd. 
October 22. ‘* Botanizing in the Austrian Tyrol,” by Dr. 
October 29. ‘‘ Life-History of a Fern,” by Professor L. 
November 5. ‘‘ Fossil Plants of the Vicinity of New York,” 
by Dr. Arthur Hollick. 
November 12. ‘¢ The Effect of Wounding on Plants,” by 
Professor H. M. Richards. 
November 19. ‘‘ Hybrids; Their Nature and Behavior,” 
by Dr. D. T. MacDougal. 
In addition to the above, lectures have been given before 
the Horticultural Society of New York at the meetings held 
in the museum, by permission of the Board of Managers. 
At the request of the Director of the Brooklyn Institute of 
Arts and Sciences, Dr. N. L. Britton, Director-in-Chief, gave 
a lecture on Cacti to an audience sa aa of members of 
the latter institution on December 7, 1 
In addition, a number of ee anes age been held for 
the advanced pupils of the public schools, and guides have 
been furnished for parties which have been brought to the 
Garden by teachers for the inspection of the collections. 
Material for nature study has also been furnished to a num- 
ber of schools on request. 
The botanical conventions, held bi-weekly in the library, 
continue to be a source of great profit to the entire staff and 
to the botanists of neighboring institutions who attend them. 
The meetings in question afford an opportunity of presenting 
the results of investigations at an early moment and also give 
opportunity for discussion by specialists in every branch of 
the subject. 
The following subjects have been presented during the 
year: 
