Haights and Stanton
Highland Park Zoo
Discharging Scraper
Hill Road Surface Drain
Highland Park Zoo
Heberton Wall South
Heth's Run Bridge
Heberton Street Wall
Bear Pit
Highland Park
Highland Reservoir No. 2
Boat House on Carnegie Lake
Children's Zoo
Children's Zoo
Drawing Plans of Haights Run Bridge
Cleaning the Bottom
Hill Road and Zoo Drive
Haights and Avondale
Hill Road
Heberton Street and Wall
Highland Reservoir No. 1
Cleaning at Highland Reservoir
Cleaning Operations
Highland Park
Cleaning Bottom
Concrete Lining
Children on a Zoo Trip
Bergwyn Playground