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which is nearly completed, except for the filling up of the 

 old winding course of the Bronx River, which the stream 

 occupied before it was diverted, many years ago, into a 

 straight course several hundred feet in length. The old 

 river course is being taken advantage of as a place to 

 deposit boulders, and rubbish from the plantations, and 

 it will be useful for these purposes for some years. Drain- 

 age ditches have been dug through this area so that water 

 does not stand there very long. 



At the rear of the museum building, one of the rocky 

 hills was completely removed and the surface regulated 

 with topsoil and sown; work is still in progress on the 

 removal of the other rocky hill; all the stone obtained 

 from these hills has been used in the construction of paths 

 and roads, and enough probably remains to complete the 

 path system as planned. 



Much grading has been done at a number of points in 

 the arboretum on the east side of the grounds, prepar- 

 atory to the planting of young trees, and in shaping banks 

 along paths and along the river road. The surroundings 

 of the completed portion of conservatory range no. 2 on 

 the east side of the grounds, and of power-house no. 2, 

 have also been partially graded and prepared for planting; 

 minor grading work has been accomplished at other points, 

 such as the west end of the Upper Lake, the west end of 

 the Long Bridge, and along the driveway approach to 

 the Woodlawn Road Bridge. 



Several hundred feet of vitrified earthenware drain- 

 pipe was laid in the north meadows east of the Bronx 

 River, outflowing into the river, practically completing 

 the drain-pipe system required in that part of the grounds. 

 The earthenware drain-pipe from the cellar of conserva- 

 tory range no. 2 was extended through the arboretum to 

 the Bronx River. Minor extensions of the drain-pipe 

 system were made at various points in the grounds, and a 

 number of drainage basins were constructed. 



