Boston Subway, Tremont St. near School St. Design

Hotel Central, Green St.

Causeway St. opp. N. Station

Part of Bldg. 1-3 Grove Place

Dudley St. Station W. Loop

Elm St. from Washington St. East

Charles River Bridge Pier #10

Charles River Bridge Progress on Foundation

Interior Egleston Sq. Station

Ropes and Check Valve on Air Hoist Armature Room, Albany St. Machinery Shop

Car 5436 Park St. Subway Northbound Berth 1

Making Borings down Pipes Harvard Sq.

Main St. Kendall Sq.