Neighborhoods Northwest Philadelphia

Roxborough Works (1869)

Germantown Works (1851) and Mt. Airy Works (1882)

Pennsylvania Railroad Bridge at Manayunk, about 1895

Panoramic Manayunk: Views Past and Present

Black-and-white image showing a factory, smokestacks and smoke, and streets

Dobson’s Mill, 1884, from History of Philadelphia by Scharf & Wescott

Map of the County of Philadelphia from Actual Survey, 1843

Two bottles of water from a river, one dark with pollution and one clear after filtration

Water Before and After Roxborough