Paring and track laying sec.4a Tracks details concrete poling boards under ties Boy St. corner Dartmouth Cutting out old subway wall and beam, sec.5 Trees on west side of Tremont St. mall looking northerly 481-483 Commonwealth Ave. Trees on west side of Tremont St. mall looking s.e. Weather kiosk, Boston Common north and west faces Massachusetts Avenue Station entrance, Boston, Mass. Sec.2 stairway building from Boylston Bridge 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. Bridging in Arlington St. south of Boylston St. Sidewalk at 352 Boylston Street, Boston, Mass., June 6, 1920 Sidewalk at 352-356 Boylston Street, Boston, Mass., June 6, 1920 Building 396-406 Boylston St. Building 406-410 Boylston St. Building 304-372 Boylston St. Sidewalk from no. 421 Boylston Street west, Boston, Mass., June 6, 1920 Subway entrance View of Boston Common, Boston, Mass., undated Arlington Station entrance and exit 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.