Sta.9+00 air ducts Sta.5 roof beams EBT alterations - sta.5 westerly side Lewis St. EBT alterations - general northerly view - Lewis St. from Marginal St. EBT alterations - sta.9 Lewis St. construction EBT alterations - sta.5 Lewis St. roof EBT alterations - support shed 84-D EBT alterations - underpinning - sheds 19-22 EBT alterations - Lewis St. sta.5 EBT alterations - Lewis St. sta.8 EBT alterations - Lewis St. EBT alterations - Lewis St., removing air chambers EBT alterations - general northerly view of Lewis St. from shed 19 EBT alterations - sheds no.19 to 22 Lewis St. EBT alterations - general northerly view - Lewis St. from shed19 EBT alterations - general northerly view - Lewis St. from shed19 EBT alterations - general northerly view - Lewis St. from shed19 EBT alterations - Lewis St. sta.8 EBT alterations - sta. 8 + 40 + existing tunnel westerly side of Lewis St. EBT alterations - Mayor's Day EBT alterations - Mayor's Day Street construction with a sign for tents and awnings in the background Building over stairway at westerly end of sec.C, EBT ... and bracing near sta.6+80 EBT looking southerly Looking northerly on sec.A, EBT from Webster St. bridge Concrete Beams Special concrete beams Special concrete beams Chemical analyses of cement used on EBT Sec.B, comparative tests of concrete for different mixtures Washington St. on State St. Smoke stack for boilers plant for sect.C, EBT Sect.D, construction front of Fiske Building Air compressors, sec.C, EBT South drift of EBT between Shield and Atlantic chambers showing point of escape of air of 06/29/2903 Broken grout mixer EBT Looking north from Hotel Tivoli Looking north from Sherburne Building on eastline of tunnel Looking south from Sherburne Building Looking north from Sherburne Building on ctre. line of tunnel Corner of Ash and Bennet Sts. so. side Bennet St. Removal of Old Court House Front Removal of Old Court House Front Escalator covering, Scollay Square, Boston, Mass., March 24, 1916 EBT Construction site with workers and equipment, 1922 Construction site with workers, derricks, and other equipment, 1922 Work on sec.C, EBT showing derrick platform Derrick platform sec.C shaft, EBT
