[Men digging near Morris Park Office.]
[Worker digging a ditch.]
[Shaft of Ashokan Water Tunnel.]
[Digging subway tube under East River for Queensboro Subway.]
[Launching New York River Shaft Caisson.]
Summit Mineral Spring Water
[Placing side ring "upper half".]
[The working chamber of the New York River Shaft Caisson.]
Subways, Fourteenth Street Cut for Subway, Rock Cut Looking West, Shaft 1.
Penn. Depot Excavations.
[982 Summit Avenue.]
Shaft No. 4, Steinway Tunnel.
Summit Mineral Spring Water. Delluc & Co., Pharmaceutists
[Digging in on biggest job.]
[Construction site on West Side.]
[Shaft 9A.]
[Tightening bolts.]