16 
parasitic and other fungi, algae, and myxomycetes. This collec- 
tion may be consulted from 9 a.m. until 5 p.m. by those interested, 
and specimens submitted will be gladly identified. 
Library 
The rapidly growing library of the Garden comprises at present 
over 11,000 volumes and over 8,300 pamphlets. This is not a cir- 
culating 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). Over 800 periodicals and serial publica- 
tions devoted to botany and closely related subjects are regularly 
received. These include the transactions of scientific 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 governments; of all state 
agricultural experiment stations and agricultural colleges; the pub- 
lications of research laboratories, universities, botanic gardens and 
other scientific institutions of the world, as well as the files of inde- 
pendent journals devoted to the various phases of plant life. The 
library is especially rich in publications of foreign countries. 
Laboratory Building 
The Laboratory Building contains (besides offices of administra- 
tion and the Library and Herbarium mentioned above) four lab- 
oratory rooms, a culture room, two classrooms with stereopticon 
and other equipment for instruction, a room for the installation of 
temporary exhibits, six private research rooms, and an auditorium 
seating about 570 and equipped with motion picture machine, 
stereopticon and lecture table supplied with water, gas, and elec- 
tric current for lectures involving experimental work. 
Instructional Greenhouses 
A range of three greenhouses, each about 20 x 30 feet, is pro- 
vided for the practical instruction of children and adults in plant 
propagation and other subjects. 
