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Grounds 
For the use of the gardening school, the carpenter built 
a wire fence 6 feet high, enclosing an area 95 feet wide and 
125 feet long at the school garden. He also put up a wire 
fence 6 feet high, surrounding a plot 75 feet wide, and 200 
feet long south of the nursery. 
By running the gasoline engine for two weeks, sufficient 
wood was cut to supply the propagating houses with fuel 
for four months and the mansion for two months. We have 
continued the uprooting of the poison ivy throughout the 
Garden. About 75 tons of hay were cut during the 
summer. 
From June to September we had two city officers in 
civilian clothes on Saturdays, Sundays and holidays. With 
our two regular keepers and twelve additional guards 
selected from among the gardeners and laborers, the 
grounds and plantations have been protected. One city 
officer was detailed to the Garden every day during the 
year. On Saturdays and Sundays during the summer 
months the number of visitors averaged about 45,000. 
Nearly 4,000 children visited the picnic grounds every 
week from May to September. On Saturday, June 21, 
we had four parties, one of them with 3,000 children. 
Respectfully submitted, 
RTHUR J. CoRBETT, 
Superintendent of Buildings and Grounds. 
REPORT OF THE BIBLIOGRAPHER 
Dr. N. L. Brirron, Drrector-1n-CHIEF. 
Sir: I have the honor to submit the following report for 
the year 1919. 
The customary amount of my time has been devoted to 
the bibliographic assistance of users of the library, and the 
unusually small amount of publication during the year has 
permitted considerable research and writing of manuscripts. 
At the beginning of the year the prospect of progress in 
the publication of North American Flora looked unusually 
