“warming up” colors, serving to protect the leaf against the 
cooler temperatures of autumn. It seems more probable, how- 
ever, that these colors are of no special significance in the life of 
the tree or of the leaf, but are merely the colors of the substan- 
ces which result when the green coloring matter (chlorophyll 
and other contents of the leaves disintegrate, just before the fall 
of the leaf. 
C. S. G. 
NOTICES 
The Brooklyn Botanic Garden is open free to the public 
daily, from 8 a. m. until sunset; on Sundays and holidays at 10 
a. m. 
Entrances on Flatbush Avenue, opposite Prospect Park; on 
Washington Avenue, south of Eastern Parkway; and on Eastern 
Parkway, west of the Museum building. 
The Entrance to the Laboratory building is on Washington 
Avenue, opposite Montgomery Street. 
The Garden may be reached by Flatbush Avenue trolley to 
Malbone Street; Franklin Avenue and Lorimer Street trolleys to 
Washington Avenue; and Brighton Beach elevated to Consumer’s 
Park Station. (The elevated train stops only when the conductor 
is notified in advance.) 
A docent will meet parties by appointment and conduct them 
through the Garden. Telephone, 6173 Prospect. Mail address, 
Brooklyn Botanic Garden, Brooklyn, N. Y. 
Additional copies of this and preceding Leaflets may be 
had on request by mail or otherwise. 
