TWENTY-FIRST ANNUAL REPORT 107 
herewith. Even though the blast was covered by large logs 
chained together, and these in turn covered with a mat made of 
large ropes, water and stones were thrown to a height far above 
the elevated railroad structure. 
The soft mud was then removed, in some places, to a depth 
of six feet, to the clay bottom, to provide suitable foundations 
for the sea-wall. The sea-wall was built of large stones without 
mortar to within one foot of the water-level, and the remainder 
was built of rubble masonry. The wall, in plan, is a compound 
reversed curve, to conform to the old water line at the edge of 
the dock. 
A slip was built within the wharf area to admit the launches, 
whereby they may discharge passengers on one side and receive 
them on the other, and thus greatly expedite the handling of 
the launch traffic. 
Drains from the Boat House were laid, the fill leveled off, 
and a floor of six inches of concrete was laid over the entire 
wharf area. A platform was constructed two steps above this 
level along the rear edge, and concrete benches placed there for 
the accommodation of the public. 
A row of electric-light posts was erected, each post having 
a cross arm carrying a large light at each end, and a socket in 
the center for a flagstaff. 
An enclosure was made at one side of the launch slip and 
provided with a canopy and concrete benches for the reception 
of a sufficient number of persons to load a launch. This serves 
to prevent confusion, and the struggling of crowds to get on 
the launches during rush hours. 
Formerly the water had been too deep in some places along 
the wharf, and in other places the river bottom was composed 
of sticky mud. These constituted most dangerous conditions for 
persons entering and leaving the rowboats. Accordingly, the 
mud was removed and fill put in, making shallow water and a 
solid bottom for a distance of forty feet from the wharf. 
We now have a most attractive and satisfactory boating 
pavilion which will be good for all time, and require few repairs. 
Numerous surveys were made and maps drawn with refer- 
