Refining oil. The agitator, or treating tank.

Refining oil. The agitator, or treating tank.

Refining oil.

Tankage, west side, Oil City.

Loading tank cars.

Cottage Hill [Oil City].

East side of Triumph Hill, near Tidioute, Pa.

Drake Well, the first oil well.

Tuna Valley.

View from Henderson Farm.

Summit City.

Top of Triumph Hill, 50 derricks.

West side, Triumph Hill, 50 derricks.

East side, Triumph Hill, 50 derricks.

Down the river from Tidioute.

The churches.

General view of Tidioute.

View on Oil Creek.

Burning oil tanks at Olean.

The great Kinzua Bridge near Alton, Pa. [During construction.]

The great Kinzua Bridge near Alton, Pa. Highest bridge in the world. [View of construction.]

Tarport and Limestone from B.B. & K. R.R.

Flat Iron Rocks. [People picnicking.]

View of Flat Iron Rocks.

View of a train crossing the Kinzua Bridge.

Drilling an oil well.

Drilling an oil well.

Over Culver's R.R. bridge.

Old Boyd House and oil exchange.

Old Boyd House.