Za7 
It may be of interest to teachers of botany that the nine extant 
genera of cycads are now represented in House 12. To reach the 
Cycad House take the first door to the /eft after entering the cen- 
tral or Economic House and pass through to the end house. 
The Conservatories are open April 1 to October 31, 10 a.m— 
4:30 p.m. (Sundays, 2-4:30) ; November 1 to March 31, 10 a.m.— 
4 p.m. (Sundays, 2-4). 
_— 
Herbarium 
yerbarium consists at present of about 200,000 
specimens, including phanerogams, ferns, mosses, liverworts, 
lichens, parasitic and other fungi, algae, and myxomycetes. ‘This 
collection may be consulted daily (except Sundays and holidays) 
Speci- 
a 
The Garden 
— 
from 9 a.m. until 5 p.m., Saturdays from 9 a.m. to 12 m. 
mens submitted for identification will be gladly received. 
Library 
— 
The rapidly growing library of the Garden comprises at present 
approximately 18,000 volumes and more than 14,000 pamphlets. 
This is not a circulating library, but is open free for consultation 
to all persons daily (except Sundays and holidays) from 9 a.m. 
until 5 p.m. (Saturdays, 9 to 12). Nearly 1,000 periodicals and 
serial publications devoted to botany and closely related subjects 
These include the transactions of scientific 
are regularly received. 
societies from all quarters of the globe; the bulletins, monographs, 
reports, and other publications of various departments of the 
United States Government, as well as those of foreign govern- 
ments, and of all state agricultural experiment stations and agricul- 
tural colleges; the publications of research laboratories, universi- 
ties, botanic gardens, and other scientific institutions of the world, 
as well as the files of independent journals devoted to the various 
phases of plant life. The library is specially rich in publications 
of foreign countries and has a growing collection of incunabula 
and other pre-Linnean works. 
3ibliographical assistance is rendered to readers by members of 
the Library staff. 
