Title: Reports on trials of duty and capacity of the pumping engines no. 2, at Ridgewood, and of no. 1, at Prospect Hill, made in 1861-'2
Subjects: Pumping stations, Pumping machinery, Performance, Water-supply, Ridgewood Pumping Station (Brooklyn, New York, N.Y.), Prospect Hill Pumping Station (Brooklyn, New York, N.Y.), Brooklyn (New York, N.Y.). Water Works
Places: New York (State), New York