Sullivan Sq. Station Sullivan Sq. Station, progress view Sullivan Sq. Station, progress view Site of Steel Shop, Alford St. next to river Sullivan Sq. Station changes on Main St. Sullivan Sq. alterations Sullivan Sq. Station progress view Changes at Sullivan Sq. Station Sullivan Sq. Station changes Sullivan Sq. Station Warren Bridge etc. from top of Schrafft building, Charlestown, Mass. Charlestown Bridge Location of Column at Arrow Park opp. Sullivan Sq. Station Work, Causeway at Beverly Street, Boston, Mass. Causeway Street at Beverly Street new steelwork, Boston, Mass. Sullivan Sq. Station Thompson St. Station extension of Platform New steel work at Thompson Sq. Column 94 w.s. of Thompson Sq. Column 94 south of Thompson Sq. City Sq. Station City Sq. Station Third house s. of Mystic River w. side of Alforn St. City Sq. Station progress view City Sq. Station progress view Section of elevated line Column at s. end of Charlestown Bridge City Sq. Station progress view Columns at s. end of Charlestown Bridge City Sq. Station progress view City Sq. Station progress view City Sq. Station progress on stairways, Charlestown City Sq. progress photograph City Sq. Station, progress e. side City Sq. Station, progress on e. stairways City Sq. Station, progress on e. side City Sq. Station, progress on e. platform looking n. City Sq. Station, progress looking s. City Sq. Station, progress looking n. City Sq. Station, progress on easterly side, Charlestown City Sq. Station, progress on e. station City Sq. Station, progress view City Sq. Station, e. side City Sq. Station, progress view, Charlestown, Mass. City Sq. Station, progress view City Sq. Station, progress view City Sq. Station, progress view City Sq. Station, progress view North incline, Washington St. Tunnel, Charlestown Looking west in public garden