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sional use is 12.47 acres. Of this 11.31 acres are included in the 
fenced area and 1.16 lie south of Maryland Avenue. Of the 
section lying south of Maryland Avenue a number of stables 
covering 0.10 acre is used for other purposes and need not be 
included. Of the area within the inclosure 1.15 acres only are 
covered by palm houses and other structures, while the remainder 
of 10.16 acres is used for outdoor display. This latter area has 
been diminished considerably by the location of the Grant Me- 
morial, and when the construction of the Meade Memorial is 
begun the available space will be still further decreased. 
“The famous Royal Botanic Gardens of Kew, formerly of 253 
acres, of which 178 were in the arboretum and 75 in gardens 
devoted to economic and taxonomic work, had been increased to 
288 acres in 1908. The 24 colonial botanical gardens of the 
British Empire are closely associated and identified with Kew. 
These associated gardens have opened up new industries in the 
British colonies, thus creating an increased demand for capital 
and labor; have introduced quinine, cocoa, and rubber from 
South American countries to colonies where it was theretofore 
unknown in culture, and tea into South Africa, where it had not 
been previously grown: and in many other ways have repaid a 
thousandfold by vastly increasing the trade of the Empire. This 
work became so pronounced as to have interested the German 
Empire to such an extent that Bismarck paid a special visit to 
Kew to ascertain just what influence this garden was having on 
the commerce of the British Empire. In this country economic 
work is done by the Agricultural Department, from whose activi- 
ties those of a botanic garden should be distinctly separated. 
“Berlin has 1,325 acres in its botanic garden, which was 
established at a cost of $4,000,000. Paris has 75 acres, Edin- 
burgh has 58 acres, Glasgow 40 acres, Petrograd 54 acres, and 
Rio de Janeiro has 2,000 acres. In the appendix will be found 
descriptions of botanic gardens in various parts of the world. 
These gardens are all a source of pleasure as well as of profit to 
the nations in which they are located. Harvard University has 
given to the city of Boston the 220 acres comprised in the Arnold 
Arboretum, the maintenance being retained by the university. 
St. Louis has 80 acres in its Shaw Gardens. New York has 400 
