Suspension Bridge, Pittsburgh.

Suspension Bridge, Pittsburgh.

Charging a Bessemer converter, steel works, Pittsburg, Pa., U.S.A.

Interior of grand opera house, Philadelphia, Pa., U.S.A.

Emptying cooled pig iron from molds into car, pig iron machine, Pittsburg, Pa.

Front view of ladle emptying molten iron into moulds, pig iron machine, Pittsburg, Pa., U.S.A.

Modern pig iron machine at rest, Pittsburg, Pa., U.S.A.

Red-hot steel beam from rolling process being cut into lengths by buzz saw, steel works, Pittsburg, Pa., U.S.A.

Steel ingot on the "table" of the "blooming" mill, steel works, Pittsburg, Pa., U.S.A.

Filling molds with steel, Pittsburg, Pa., U.S.A.

River coal trade, Pittsburg, Pa., U.S.A.

Plant of the blast furnace, Pittsburgh, Pa., U.S.A.

Fountain, corner Federal and Ohio Sts., Pittsburg, Pa., U.S.A.

The Point and Union Bridge, Pittsburgh, Pa.

Glass works in Birmingham, Pittsburg, Pa.

Group of children playing around water hole strewn with refuse, Pittsburgh.

Delaware Water Gap, Pa.

The Gap, from the east side of the river. Evening.

The Gap, from the east side of the river. Evening.

Little Bushkill Creek, above the falls.

Marshall's Falls, Marshall's Creek.

Marshall's Falls, Marshall's Creek.

Caldena Falls, vicinity of the Delaware Water Gap, Pennsylvania.

Buttermilk Falls.

Indian Ladder Bluff, from the bed of the river.

View on Broadhead's Creek, vicinity of Delaware Water Gap, Pennsylvania.

Caldeno Falls.

Mossy dell, vicinity of Delaware Water Gap, Pennsylvania.

Scenery in the region of the Delaware Water Gap, Pennsylvania

The Gap from the bed of the river.