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REPORT OF THE ASSISTANT DIRECTOR 
To THE DrrecrTor-1n-CHIEF. 
Sir: I have the honor to submit the following report 
for the year I9II. 
Grounds and Buildings 
The lawns and plantations suffered severely during the 
long droughts of spring and summer, when the water supply 
became so low that even the drinking fountains had to be 
turned off, but it is believed that little permanent injury 
was done. Owing to the dry weather in May, there was 
no recurrence of leaf-blight on the plane-trees, such as had 
affected them very seriously for the three previous seasons. 
Plant diseases and insect pests were successfully controlled 
by the usual methods. Painting, repairing, and artificial 
watering figured largely in the current expenditures of the 
year. The number of visitors continues to increase and 
their interest in the institution is evidenced in many ways. 
Publications 
The usual publications have been successfully continued 
during the year. 
JOURNAL 
The Journat has been published for each month during 
the year, making a volume of 290 pages, with 3 plates and 
47 figures. 
Myco.ocia 
This periodical has appeared on alternate months during 
the year, making a volume of 303 pages, with 22 plates 
and 5 figures. ‘Twenty-three species of fungi were illus- 
trated in their natural colors in this volume. 
