( 181) 
built and connected with the main drains, necessitating the 
laying of about 400 feet of six-inch and eight-inch pipe. 
In order to drain the court at the rear of the museum 
building, and to improve the drainage of the building itself, 
work is at present going forward in laying a drain about 450 
feet long, to be connected with the upper lake, and this may 
be completed during the winter. 
At the southern end of the herbaceous garden, the brook 
and drainage system was connected with the large stone 
drain built by the Department of Parks, at the time the path 
connections were made at that point with the path running 
south through Bronx Park to Pelham Avenue, and an open 
ditch which had long been a mosquito-breeding spot was en- 
tirely eliminated. 
A mosquito-breeding swamp on the west side of the Bronx 
River north of the ‘* Blue Bridge” has been turned into a 
small pond by raising the height of its bank along the Bronx 
River and by the cutting out of surplus trees and undergrowth ; 
this adds about a quarter of an acre to the water surface in 
the Garden and eliminates an unsightly marsh. 
Work has been begun on a sewer connection, about 500 
feet in length, to complete the sewerage system planned for 
the area east of the Bronx River. 
The southern portion of the glade north of the herbaceous 
garden which was taken up this year for plantations illus- 
trating structural botany, has been drained and graded; the 
brook which runs through the herbaceous garden has been 
extended about 300 feet northward, taking advantage of the 
natural watershed, and greatly improving this area of about 
one acre. 
Water Supply. 
The only extension of the water supply made during the 
year was the laying of one-inch pipe northward from the 
northern end of the herbaceous garden through the area just 
referred to, a distance of about 350 feet, and the bringing of 
water to the public comfort station, now under construction, 
at the approach to the elevated railway station. 
