Construction sec.5 just inside the portal Detail of roof construction looking easterly Portal sec.1 Digging sec.5 removing old subway concrete Baulustrade at sec.5 incline Building balustrade on incline, sec.5 Fence at site of stairway from Boylston St. to Mass. Ave. Looking across Fens Trestle for temporary track Track... Site of stairway Boylston Street rod at 12.83 Copley Square from roof of Boston Public Library, Boston, Mass., July 29, 1914 Track laying on Boylston Street, corner of Exeter Street, looking east, Boston, Mass. Balustrade sec.5 incline looking easterly 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.