78 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1918. 



made to the bird house, the antelope house, and the Henderson out- 

 door parrot cage. 



A large concrete bathing pool was constructed in the yak's in- 

 closure and the tanks in the bear yards were all repaired. The 

 fences of the bear yards, antelope yards, and some others of the out- 

 door cages and inclosures were painted. An outdoor cage 16 feet 

 square, with shelter attached, was constructed for the kea parrots re- 

 ceived as a gift from the New Zealand Government. The indoor 

 chimpanzee quarters, in the lion house, were reconstructed with 

 gratings of three-fourths inch iron pipe, which provide a much 

 better hold for the animal's hands and feet than did the old three- 

 eighths inch bars. Concrete walls and bases for shelter houses were 

 built at some of the deer paddocks, the cinder footpaths were ex- 

 tensively repaired, and a concrete walk and stairway was built lead- 

 ing up the west hillside from the suspension bridge and connecting 

 with the walk around the eland yards. Part of the stable building 

 near the office was rebuilt for a chicken house and, in a further 

 effort to lessen the cost of food for animals, the garden acreage 

 was again materially increased. 



THE FLORA OF THE PARK. 



In addition to an extensive native flora, the park contains many 

 exotic trees and shrubs. It is important that records be kept 

 of all introductions. During the past year Mr. William Hunter, 

 gardener, who has been in the service since the inception of the park, 

 has prepared an annotated list of all the trees and shrubs found 

 growing within the boundary fence. The list has been copied on 

 cards for filing, and will be carefully edited and revised during the 

 present season. Information is given as to the abundance and loca- 

 tion of native species and, in the case of exotics, the source, date 

 of introduction, location, or any additional information likely to be 

 needed for future reference. Efforts will be made to secure speci- 

 mens of trees properly belonging to the flora of the District of 

 Columbia and not represented in the park, in order that all the 

 native species may be found within this reserve. A similar list of 

 herbaceous plants, prepared several years ago, will be brought up 

 to date, thus furnishing a complete catalogue of the flora of the park, 

 which, it is to be hoped, may later be published in some form as part of 

 a guide to the natural features of the park. Lists of the native mam- 

 mals, birds, and reptiles of the park, with pertinent data, are also 

 in preparation for some similar purpose. 



ALTERATION OF THE WESTERN BOUNDARY. 



By an act approved June 23, 1913, Congress appropriated $107,200 

 for the purchase of certain lots and parcels of land between the west- 



