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 Untitled Sand (land?) heater on Common Iron-work crossing western part of Charles Street looking east from Public Garden Tremont Street (?) Untitled Iron-work on Tremont Street mall, looking north, section 1 Traffic on Eliot Street Execavation for ventilating chamber at section 1 Tremont Street mall of Common Bracing in trench at section 2 on Boylstion Street mall, looking westerly Excavation at section 3, looking northerly Tunnel for 24" x 12" gas pipes at section 3 Cave-in of trench for water conduit at section 2, looking easterly Cave-in of trench for water conduit at section 2, looking southerly Looking northerly on section 3 from near West Street foot-bridge Looking west at trench in section 2 showing bracing etc. Gas pipe tunnel at section 3, looking northerly Looking west on Boylstion Street mall, section 2 Looking easterly on section 2 showing bracing, screening apparatus, etc.(Tremont Street) Raising a 30" water pipe on Tremont Street looking northerly from near Eliot Street Raising a 30" water pipe on Tremont Street looking northerly from near Eliot Street Some bracing on section 2 looking west (Tremont Street) Looking easterly on section 2 showing machinery (Tremont Street) Work on section 2 looking easterly (Tremont Street) Looking northerly at eastern bank of sec. 3 showing slope, Tremont and Park Streets, Boston, Mass. Excavating o sec. 2 looking south-westerly (Tremont Street) East bank of excavation on sec. 3 showing strata Work on sec. 2 looking southerly (Tremont Street) Trench machine across King's Chapel Burying Ground, Tremont Street, Boston, Mass., April 30, 1896 Western bank of excavation on sec. 3 showing strata (Tremont Street) Shaft on Tremont Street sec. 6, bucket ready to be lowered Excavation for sub-subway on sec. 2, looking west Incline in Public Garden Looking west in Public Garden Tree 233 Looking northerly on Tremont St. sec.4 Concrete mixer on sec.2 in operation Excavating on sec.2, looking southerly Work on sec.3, looking northerly Steel beams in foundation of easterly incline wall, sec.11, looking northerly
