Bracing in sec.7, Scollay Sq. looking towards Sec.8.5 Looking southerly in the Western Part of Sec.7, Scollay Sq. Stairway coverings at sec.2, looking northerly Stairway coverings at sec.2 looking northerly Stairway coverings on the Common, sec.2, looking north-westerly Looking southerly in sec.4, from near Eliot Sq. Sec.4 - looking southerly, Bellmouth near Hollis St. Split pile in foundation of old B+M Station Split pile in foundation of old B+M Station Looking southerly on sec.11 from part of old station Looking northerly on sec.11 Looking northerly on sec.11, excavating Tremont St., Park St. exit Tremont St. Tremont St. Work on sec.11, looking southerly Work on sec.11, looking southerly Work on sec.11, looking southerly Work on sec.11, looking northerly Work on sec.11, looking southerly Work on sec.11, looking northerly Work on sec.11, looking southerly Work on sec.11, looking southerly Old 20"x22" wooden sewer in trench at sec.11, looking east showing piles drive in through it Old 20"x22" wooden sewer in trench at sec.11, looking north-west showing piles driven through it Work on sec.11, looking northerly Work on sec.11, looking southerly Work on sec.11, looking southerly Work on sec.11, looking southerly Work on sec.11, looking northerly Work on sec.11, looking northerly Work on sec.11, looking southerly Work on sec.11, looking southerly Untitled Work on sec.11, looking northerly Work on sec.11 looking southerly Work on sec.11 looking northerly Steel beams in foundation of westerly incline wall, sec.11, looking west Sec.11 looking southerly from part of old B+M Station Sec.11 looking northerly Sec.11 looking northerly Sec.11 looking northerly 77 Court St. - Brattle St. side 77 Court St. 77 Court St. Sec.11, looking southerly Sec.11, looking northerly Sec.11, looking southerly Steel beams in foundation of easterly incline wall, sec.11, looking easterly Progress at North Station