72 MISSOURI BOTANICAL GARDEN BULLETIN 
staff of the Missouri Botanical Garden are in ample accord 
with this idea is shown by their association with practical 
problems, among which may be mentioned these: to Dr. 
Moore is due the copper treatment of reservoirs, and water 
supplies, as well as a wider application of the value of cop- 
per salts as disinfectants; to Dr. Duggar, practical studies 
in the fungi, including contributions on plant diseases and 
methods for mushroom culture and spawn making; to Dr. 
von Schrenk, the study of decay-producing fungi and the 
development of methods of wood treatment or impregnation 
for the prevention of decay in structural and other timbers; 
to Dr. Hill, a clearer conception of the value of ventilation 
in the shipment and storage of perishable fruits and vege- 
tables; to Mir. Nolte, the perfection of a definite method of 
analyzing air for the detection of its polluting organisms. 
In common with biological progress generally, however, the 
development of our knowledge of plant life depends upon 
a clear a of research and freedom of inquiry. 
With this condition established, and with the understanding 
that practical experimentation is costly, it is more likely 
that in the present era the applications of botanical science 
will always illuminate rather than obscure the domain of 
investigation. 
FLORAL DISPLAYS 
Conservatories.—A large and varied collection of snap- 
dragons, or antirrhinums, and equally large and varied col- 
lections of gloxinias and calceolarias with a scattering of 
Lilium rubrum and calla lilies have made the Floral Display 
House during the month of May a place of gay colors and 
beautiful flower forms. These flowers will gradually give 
place to larger collections of lilies and the many varieties 
and shades of French hydrangeas. A collection of fuchsias 
and specimens of the little blue daisy (Felicia amelloides), 
together with yellow and white marguerites and some 
senecios, will complete the floral display for the month of 
June, while large groups of foliage plants, such as coleus, 
crotons, and fanecy-leaved caladiums, will make an effective 
setting for the bright colored flowers. In order to facilitate 
its conversion into a house for the large collection of suc- 
culents, the Floral Display House will be closed to the public 
during the summer months. 
Rose Garden.—The rose garden! of last season has been 
considerably enlarged by the addition of some fifty beds to 
the south of the pergola. These beds have been planted with 
the following varieties of roses: 
* See article in March, 1914, number of the BULLETIN for further in- 
‘formation concerning the rose garden. 
