(275) 
Great improvements in grading have been almost com- 
pleted on an area measuring about 500 by 300 feet at the 
northern part of the morphological garden. Foundations of 
houses and barns destroyed years ago have been excavated, 
the plots have been filled in with earth, covered with top-soil, 
and the grounds entirely graded. A blind drain about 400 
feet in length has been excavated, and the stone obtained 
from it has been used to construct an open drain 3 feet in 
width and 280 feet in length, extending to the natural flow 
on the herbaceous grounds and to pave the path mentioned in 
the foregoing paragraph. This work could not be completed 
on account of frost in November. 
Owing to the washing out of the roads constructed three and 
four years ago, it was found to be necessary to regrade edges 
and grass gutters 2,900 feet long and 3 feet in width. The 
sods have been lifted and the grade lowered and relaid. 
Other minor crossings of paths have been regulated and 
graded. 
Drainage 
In order that drainage operations might keep pace with the 
improvements in grading, it was necessary to construct thir- 
teen additional catch basins at the following low points: one 
at the junction of the paths east of the main road opposite the 
museum building, twoon Mosholu bridge approach, one near 
the border line of the N. Y.C.& H. R.R. R. west of the lake, 
four north and south of the lake bridge, one just south of 
Woodlawn Avenue bridge approach, and two along the road 
east of the river. ‘T'wo dry wells were also dug on small tri- 
angular grass plots, and 560 feet of 6- and 8-inch pipe were 
used to drain these basins to the main sewer or lakes. Spe- 
cial care was taken of surface drainage in connection with 
regulating; and along the edges of all the new completed 
roads and paths, the gutters have been sodded. All the 
basins have been examined and cleaned where it was found 
necessary. 
