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