Looking east in sec.1 in front of Hotel Somerset, sta.11 Looking east in sec.1, sta.11 showing forms for sidewalls in place Sec.3, arch and stop-plank manhole, sta.37+05 Part of Old South Church, Dartmouth Street, Boston, Mass., August 27, 1912 Arch reinforcement before connecting opp. Gloucester St. Arch reinforcement sec.3 opp Gloucester St. Sec.1 in the Fens looking easterly Sec.1, looking easterly on Newbury St. from Charlesgate east Looking easterly along Newbury St. from Charlesgate east Concrete mixing at Nawn's Yard Concrete mixing at Nawn's Yard Sec.2, looking n.e. from Boylston St. Sec.1, sta.10 piles under Stony Brook Conduit Sec.1, sta.10 piles under Stony Brook Conduit Excavating sec.2, looking west Sec.2, retaining wall north side of Boylston St. Sec.1, sta.10+30 showing bent steel sheet pile Excavating under Stony Brook conduit sec.1, sta.10 looking easterly Excavating under Stony Brook conduit sec.1, sta.10 looking easterly Sec.1, looking across the Fens from Charlesgate West Sec.1, looking easterly across the Fens Sec.2 in City Yard, looking easterly Cab Co. building corner Mass. Ave. and Newbury St. Cab Co. building, Mass. Ave. looking northeasterly Cab Co. building from Boylston St. bridge Birds-eye view of Cab Co. building looking northwest Sec. 3, Boylston St. looking east from Exeter Street, Boston, Mass., October 4, 1912 Buildings 553-541 Boylston St. Invert reinforcement sec.2, sta.23+50 looking westerly Invert reinforcement sec.2, sta.23+50 looking westerly Sec.2, sta.25, looking easterly Concrete dam in ther Fens, sec.1, sta.9+25 Concrete dam in ther Fens, sec.1, sta.9 Sec.1 in the Fens, looking easterly Sec.1 in the Fens Sec.2 from Boylston St. looking northeastely Sec.2 looking in City Yard, looking northwesterly Sec.2 work under Police Station, looking southeasterly Sec.3, sta.29, showing centre wall construction Sec.3, sta.39, looking east showing the core Sec.2 in City Yard, looking westerly Sec.2 in City Yard, looking west Sec.2 in City Yard, looking westerly Sec.2 in City Yard, looking northeasterly from Boylston St. Sec.1, sta.13 under Newbury St. looking east Sec.1, sta.13+10 showing trusses holding centre-wall forms End section of subway at sta.23, sec.2, looking easterly Incline covering corner of Comm. Ave. Kenmore and Beacon Sts. Forms showing height of incline covering sec.1, Comm. Ave. looking east Inside a tunnel with a wooden frame and a ladder on the left