Interior of wooden structure Interior ofa tunnel under construction, showing wood and steel framework and stone foundation Land between subway and railroad sec.2, showing pile of debris in the foreground Land between subway and railroad sec.2, showing top of subway structure Large construction site, showing tunnels, workers, and buildings with advetisements Large crack down the center of the railroad building, with construction rubble in front Large crack down the center of the railroad building, with construction rubble in front Large mounds of dirt or sand with tracks running to the right in foreground Large pillar with houses in the background Large rock, with four people at the base & a rooftop seen at the top Leak in 30" water pipe, sec 4 opposite Common St. looking southerly & down Long stable-like building Looking into a tunnel, with wooden trestles in the background & to the left Looking into tunnel, with naked lightbulb lit in upper right corner Looking left into arched tunnel entrance Looking northerly in western side wall trench, sec 9 Looking northerly showing temporary bridge for loading cars with earth from subway Looking out of two parallel subway tunnels Looking slightly left out of tunnel Looking southerly from sec 10 at half of sec 9 heading Machinery of Metropolitan Construction Co, in front of Wyman dentist office Men standing at construction site in front of J.C. Parker, druggist, 232 Tremont and Eliot Streets, Boston, Mass. Men working in a tunnel in the background, with beams in the foreground & to the right Men working in a tunnel with shovels Men working on moving dirt with wheelbarrow Metal fence in front of brick building Open construction site in a street, showing beams and workers Open trench spanned by a temporary wooden sidewalk, with workers, pedestrians, and a crane Operating room, Tower A Pedestrians walking over ventilation grates, including several children and a newsboy Pedestrians walking over ventilation grates, including two newsboys Pier construction possibly for Charles River bridge Pile of rocks in a pit Pipes along westerly sidewall, sec. 9 Pipes in Washington St., sec 9, looking northerly Platform and tracks at Washington Station Progress on pier #7 Progress on stone structure with crane Rail construction with crane on the left Rail tracks to the left of a large cement mixer Railroad bridge under construction Railroad construction area with covered area at left Railroad tracks passing under a bridge, next to steel forms for a wall Railroad tracks passing under a bridge, next to steel forms for a wall Railroad tracks passing under steel framework Railroad tracks passing under steel framework Railroad tracks with a rising chain link fence on the left Ramshackle building with wooden fencing Construction of wall next to railroad tracks showing support framework and machinery Construction setup