Arlington Station entrance and exit Arlington Station entrance and exit Hoisting engine Boylston Street near Arlington, Boston, Mass. Construction on Boylston Street before Boston Public Library, Boston, Mass., undated Subway entrance, Copley Square in front of the Boston Public Library, Boston, Mass. Copley Square, Boylston and Dartmouth Streets, looking north, Boston, Mass. Subway entrance, new Old South Church, Copley Sq. Subway entrance, new Old South Church, Copley Sq. Ginty Building Adam Sq. covering Platform and stairs, Massachusetts Ave. Station Massachusetts Ave. Station Children in a lot near Kenmore Sq. Boylston St. looking westely New paving Boylston St. east of Clarendon St. 671 Boylston St. Pipes crossing opposite West St. Excavating looking northerly Hotel Thorndike marquee, Boston, Mass., September 10, 1914 New wall 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