Sec.H for ventilating chamber Sec.G loading cars and sheeting Sec.G bracing and incline looking south Sec.F corner of Dorchester Ave. and W. Forth Fanny Fendel Property W. 4th St. Fanny Fendel Property W. 4th St. Fanny Fendel Property W. 4th St. 13-15 Boston St. 17-21 Boston St. 23-25 Boston St. Laundry 27-33 Boston St. Membrane waterproofing tests Chart, long-time test of cement Sec.J repairing R.R. Building Construction progress Andrew Sq. Station Illuminated sign Dewey Sq. Dorchester Tunnel and Old Colony Ave. 82-86 W. Forth St. Dorchester Ave. bridge and R.R. Dorchester Ave. Bridge abutment R.R. Building Cracks - R.R. Building Cracks R.R. Building Looking northerly on Boston St. Sec.J Andrew Sq. Station. Construction Dorchester Ave. of St. Seventh St. Foundation of Polish School Back of north abutment of Dorchester Ave. bridge Sec.4 Broadway Bridge widening Tunnel under Point Channel Dorchester Ave. Bridge Sec.J escalator machinery Sec.J escalator machinery Entrance South Station under Sec.G Dorchester Ave. bridge west side from R.R. embankment Andrew Surface Station D.E. Ellery St. face Interior of Andrew Surface Station, northerly end looking west O.C. R.R. Snit O.C. R.R. O.C. R.R. O.C. R.R. DRT sec.197 Ashmont St. DRT sec. - northerly view Dorchester Ave. from Bailey St. DRT retaining wall rear of Freeport Marble Co. DRT retaining wall northeasterly corner of Adams St. Bridge DRT retaining wall no.2 Brunswick St. DRT northerly view - westerly side from Beale St. DRT northerly view - westerly side from rear no.2 Brunswick St. DRT southerly view - eaasterly side from opposite Vanwinkle St. DRT northerly view - westerly side from Van Winkle St.