MISSOURI BOTANICAL GARDEN BULLETIN 11 
need of an infirmary to which such plants could be relegated 
while they were recovering or resting, preparatory to an- 
other blooming period. 
EXPERIMENTAL GREENHOUSES 
The increase in the number of graduate students, as well 
as the reorganization of the school for gardening, necessi- 
tated providing better facilities for experimental work car- 
ried on by students at the Garden. Consequently, during 
the year there has been built on the site of the old green- 
houses, between the rose garden and Mr. Shaw’s residence, 
two greenhouses, 50 x 27 feet, with an adequate head house. 
The Garden prepared the plans and furnished all the labor 
for these houses, the material for the superstructure being 
purchased from the Lord & Burnham Co. One of these 
houses is divided into numerous compartments in which dif- 
ferent temperatures and degrees of moisture may be ob- 
tained, and it is believed that the arrangement will provide 
facilities for a kind of work not sods in houses of the 
ordinary type. The compartments lend themselves well to 
pathological work, since plants affected with specific diseases 
may be isolated and studied under the most favorable condi- 
tions. Beneath these greenhouses are two cellars—one to 
be devoted to the experimental side of mushroom-growing, 
and the other to the investigation of fungi producing timber 
rot and methods for combating the same. 
While this range of houses, because of its nature, cannot 
be open to the se public, it affords for the first time, 
to those especially interested in the experimental side of 
plant physiology and plant —— adequate space for 
demonstrating this aspect of the work. 
MAIN CONSERVATORY 
The chief change in this house during the year has been 
the replanting of the wing formerly for floral displays 
with the succulents from the old range. This necessitated 
the removal of the benches and the entire rearrangement of 
the heating system. After the cacti, euphorbias, and other 
plants become established, and particularly when the climb- 
ing succulents have covered the trellises provided for the 
purpose, the collection will present an unusually fine appear- 
ance. The house is admira ly adapted for the purpose, and 
the possibility of growing these plants directly in the ground, 
and maintaining the dry atmosphere required, will undoubt- 
edly result in a display which will be far better than it was 
