Boiler Boiler Construction site with a ladder under an arch Construction site with a ladder under an arch Showing 1/2 of shield for sec.C, EBT Showing 1/2 of shield for sec.C, EBT Looking northerly in shaft of section Half or rear end of sec.C shield in shaft Construction site with timbering Construction site with wooden framing and possibly steel framing Shield in sec.C, EBT Shield in sec.C, EBT in shaft Sec.C bulkhead, shield and timbering for supporting sidewall forms in shaft Showing bulkheads on sec.C shield Timbering in shaft of sec.C, EBT Timbering under shield sec.C, EBT Half of shield and wooden center and part of sidewall in shaft, sec.C, EBT Looking easterly in bottom of shaft of sec.C, EBT Sec.C, EBT tunnel shield, bracing etc. in shaft Conduits south side sec.D, EBT at Fiske Building Conduits south side sec.D, EBT Crack in sill under window 112 StateSt. Cracks over window 132 State St. Crack in building 132 State St. Ducts on south side sec.D, EBT Arrangement of ducts south side of sec.D, EBT Looking easterly in sec.C, EBT Looking easterly in sec.C, EBT Photograph from upper platform, sec.C, EBT Showing cracks in Ames building Crack in Ames Building Crack in Ames Building Crack in Ames Building Boilers - power plant for sec.C Boiler room of powerhouse, sec.C EBT Air compressors sec.C EBT Lowering air lock, Sec C. EBT Lowering air lock, sec.A, EBT Lowering air lock, sec.A, EBT Getting ready to lower air lock sec.C, EBT Showing air lock for sec.C, EBT getting ready to lower same Interior view of a tunnel, 1902 Interior view of a tunnel with workers, possibly near an air lock Inside a tunnel with men at work on the right Concrete sheeting test section at Ames Building, Sec F EBT, Boston, Mass., December 27, 1902 Conduits, pipes, manholes etc., south side State St. at Brazer Building, Boston, Mass., December 24, 1902 Test of concrete beam #5 with 4 painted corr. rods 65 to 66 Long Wharf Looking northerly from southerly end of sec.A, EBT Showing bridge and water pipe Maverick Sq. on n. line of Sumner St.
