Roof construction in Bennet St. sec.1, Washington St. tunnel Sec.1, Washington St. tunnel, roof construction in Bennet St. Sec.1, Washington St. subway, forms for roof construction in Bennet St. Roof construction in Bennet St., sec.1, WashingtonSt. subway In Bennet St. sec.1, Washington St. subway forms for proof construction In Bennet St. sec.1, Washington St. subway, forms for roof construction Work in Bennet St., sec.1, Washington St. tunnel Forms for roof etc., sec.1, Washington St. tunnel, in Bennet St. Flashlight in Plummer's Basement #531 Washington St. Flashlight in Jefferson Alleys under Plummer's #531 Washington St. Incline sec.1, Washington St. Pipes in Washington St. at Old South Building Looking south in Adams Square, Boston, Mass. Underpinning Boston Herald Building Underpinning Herald Building Underpinning Old South Church Underpinning Old South Church Looking north in sec.5, w. st. subway Looking northerly in sec.5, Washington St. tunnel Looking northerly in sec.5, Washington St. tunnel Looking south in sec.5, between Franklin and Summer Sts. Looking northerly on Washington Street from Summer Street, Boston, Mass. Sec.5 near Water St. In sec.2, Washington St. subway Sec.5, Washington St. tunnel showing centre core Rear of building over LaGrange St. entrance, sec.2, Washington St. tunel Rear of building s. side Lagrange St. corner of Washington St. Rear of building over Lagrange St. entrance Rear of buildings Washington St. near s. corner Lagrange St. Underpinning Old South Building Underpinning Old South Building Stairway inclined elevators, State St. BT&S Underpinning Old South Building Underpinning Old South Building Underpinning Old South Building Underpinning Old South Building Looking northerly in sec.4, Washington St. subway Looking north in sec.4 BTS Platform over subway for easterly track, sec.5 Looking south in sec.4 Looking northerly in sec.5, Washington St. tunnel Looking northely in sec.5, Washington St. tunnel Sec.5 at Winthrop Building Washington St. at Milk St. Sec.5 pipe crossing at School St. looking north Easterly track sec.5 Sec.5, Washington St. tunnel Looking north in sec.5, from near Water St. Water pipe changes Washington St. and Adams Sq. Water pipes, Washington St.