[Men digging near Morris Park Office.]

Summit Mineral Spring Water

[Digging in on biggest job.]

[Shaft of Ashokan Water Tunnel.]

Penn. Depot Excavations.

[Tightening bolts.]

[The working chamber of the New York River Shaft Caisson.]

[Launching New York River Shaft Caisson.]

Subways, Fourteenth Street Cut for Subway, Rock Cut Looking West, Shaft 1.

[Construction site on West Side.]

Penn. Depot Excavations.

Great Conflagration at Pittsburgh Pa.

[Shaft 9A.]

Workmen Laying the Concrete Pavement in New York City

Workmen Laying the Concrete Pavement in New York City

Summit Mineral Spring Water. Delluc & Co., Pharmaceutists

[World Trade Center construction site.]

Summit Mineral Spring Water

[Construction of 52 Vanderbilt Avenue.]

[Digging subway tube under East River for Queensboro Subway.]