DEDICATION MEETINGS 
In connection with the dedication of the completed laboratory 
building, special exercises will be held on Friday and Saturday, 
April 20 and 21. There will be sessions for the reading of scien- 
tific papers on Friday and Saturday mornings at 10:30, and on 
Friday afternoon at 2 o’clock. 
On Friday evening, at 8:15, there will be a popular scientific 
program in the lecture hall of the building. The new building 
will be open for inspection from 7:30to 8:15 and from 9:45 to 11 p. m. 
PROGRAM FOR FRIDAY EVENING, AT 8:15 
1. The use of the microscope in detecting adulterants in foods 
and drugs. 
By Prof. H. H. Rusby, Dt'an of the College of Pharmacy, 
Columbia Utiiversity. 
2. Problems of Conservation in New York State. 
By Hon. George D. Pratt, Commissioner of Conservation 
of New Yoi k State. 
3. Photographing wild flowers for color illustration. 
By Dr. Homer D. House, Stale Botanist of New York. 
The public is cordially invited to all these sessions. 
NOTICES 
The Garden is open free to the public daily, from 8 a. m. un- 
til dark; on Sundays and holidays at 10 a. m. The Laboratory 
Building, containing the library, herbarium, and offices, is open 
daily, from 9 a. m. until 5 p. m. The Conservatories are open April 
1-Oetober 1,10 a. m.-4:30 p. m.; October 1-April 1, 10 a. m.-4 p. m. 
The Garden may be reached by Flatbush Avenue trolley to 
Malbone Street; Franklin Avenue and Lorimer Street trolleys to 
Washington Avenue; St. John’s Place trolley to Sterling Place; 
Ninth Avenue, Sixteenth Avenue, Union Street, Greenpoint and 
Smith Street trolleys to Prospect Park Plaza and Union Street, and 
Brighton Beach elevated to Consumers’ Park Station. (The ele- 
vated trains stop only when the conductor is notified in advance.) 
A docent will meet parties by appointment and conduct them 
through the Garden. This service is free to members of the 
Botanic Garden and to teachers with classes; to others there is a 
nominal charge of 25 cents an hour for parties of less than three, 
and 10 cents a person per hour for parties of three or more. 
Current numbers of Leaflets are free to all who wish them. 
Back series, complete, 50c. each; single numbers, 5c. each. 
The Leaflets are published weekly or biweekly from April to June, and 
September to October, inclusive, by The Brooklyn Institute of Arts and Sciences, 
at Washington Avenue and Montgomery Street, Brooklyn, N. Y- 
Telephone: 6173 Prospect. 
Mail address: Brooklyn Botanic Garden. Brooklyn, N. Y. 
