Ventilation chamber, the Fens Excavation by the loop of old subway New west wall looking north Mass. Station north side looking westerly New west wall looking southerly Showing columns of old wall and temporary wooden ones Sec.5 just east of the incline looking west Mass. Station south side Mass. Station turnstiles st the ticket office level Enlargement of Park Street Station, Boston, Mass., October 5, 1914 Placing forms for new roof Old subway roof uncovered and drilling out concrete Sec.5 drilling out concrete, Public Garden near Charles St. Sec.5 condition of old steel shows shop marks City Yard sec.2 from Boylston St. bridge Moving subway building Boston Common, east face Moving subway building, northface Moving subway building, westface showing tack Moving subway building, Boston Common west face Moving subway building, Boston Common interior showing, bracing, etc. Massachusetts Station entrance and exit on Massachusetts Avenue, Boston, Mass. Debris at south end of old platform west side Park St. station Easterly stairway buildings supported Easterly stairway building showing method of supporting Wall to be removed at triangle, north side of curve, enlargement of Park St. Station Wall to be removed, north side of curve, enlargement of Park St. Station Westface of stairway covering at easterly end of Mass. Station Eastface of stairway covering at easterly end of Mass. Station Old concrete in place Enlargement of Park St. Station, old concrete lift in place Subway entrance, west side of Dartmouth Street, side elevation, Boston, Mass., October 25, 1914 Subway entrance, west side of Dartmouth Street, side and rear elevation, Boston, Mass., October 25, 1914 Stairway covering by Boston Public Library, Boston, Mass., January 6, 1915 Stairway covering by Old South Church Subway entrance, Dartmouth Street, Boston, Mass., January 6, 1915 Pavement at fence of Park and Tremont Sts. Stair unit for easterly end Building stairs at easterly end of sec.2 Subway line entrance to Boylston Station, Boston, Mass., June 29, 1915 Subway entrance, Dartmouth Street, Old South Church, Boston, Mass., June 30, 1915 Crosswalk, Park St. looking north Birds-eye view, Boylston Street subway portal, Boston, Mass. Birds-eye view of Mass. Ave. Bridge The Kenmore St. incline Commonwealth Ave. Stairway buildings on Common near Park St. bird's-eye view from Lawrence Building 989-983 Boylston St. Buildings 989-995 Boylston St. Building 356 Newbury St. West side 356 Newbury St. Drilling old concrete at Garden incline