Four track on Tremont Street mall Work on Boylston Street mall of Common, Boston, Mass., April 24, 1895 Grave in Central Burying Ground Looking west from Charles Street into the Public Garden Looking east on the Boylston Street mall from the Park Square entrance to Common Looking southerly in 4 track subway under Tremont Street mall, showing cons truction Looking east on Boylston Street Mall of Common, Boston, Mass., May 2, 1895 Northerly entrance to gas pipe tunnel on sec.13 Looking east in Public Garden Looking west in public garden Looking towards Charles Street showing bracing in trench Looking west in Public Garden showing piles and pile-driver Looking east down incline in Public Garden Looking west in Public Garden showing concrete Looking west in Public Garden Looking west showing building foundations for walls Looking east showing building of walls to entrance Public Garden Looking west in Public Garden showing building retaining walls Looking east in Public Garden down incline showing walls Looking east in Public Garden showing pile drivers and arrangement of piles in trench Work entrance in Public Garden looking north east Embankment on common near Central Walk Building retaining walls to the entrance in Public Garden looking west Building retaining walls to the entrance in Public Garden looking north west Building retaining walls to the entrance in Public Garden looking west Looking east in Public Garden down Incline #2 Looking east on the Boylston Street mall of the Common, Boston, Mass., June 29, 1895 Looking west in Public Garden showing concrete invent Work on Boylston Street Mall of Common, looking east, Boston, Mass., July 15, 1895 Looking down incline in Public Garden Iron-work in Public Garden near Charles Street looking south Iron-work in Public Garden Work on Common corner of Charles and Boylston Streets looking east, Boston, Mass., July 31, 1895 Iron-work in Public Garden Looking towards Charles Street in Public Garden showing iron-work Incline showing iron-work on roof Looking east on Boylston Street Mall of Common, Boston, Mass., October 7, 1895 Interior of subway, Boylston Street mall Details of iron-work, Boylston Street subway near Station 9+0 Iron-work on section 1, Tremont Street mall Iron-work for 16" water pipe crossing near Park Square entrance of the Common Pipes 3 1/4 Pipes near Boylston Street Pipes near Boylston Street Looking east on Boylston Street Mall of Common, Boston, Mass., November 18, 1895 Row of intermediate columns in four track subway, Tremont Street mall of Common Fourtrack subway, interior before completed Section 1 Work on Section 3 1/4 corner of Park and Tremont Streets Section 2 construction Section 2