Cambridge St. R.R. crossing Cambridge, Central Square, safety zone Central Square Kendall Sq. Station rods in roof Cambridge Bridge Cambridge Bridge Cambridge Bridge Cambridge Bridge, from top of Eye and Ear Infirmery Corner Main and Arlington Sts., Cambridge Buildings in rear of Whitney Court off Essex St., Cambridge Dir. E. Cambridge house 2 1/2 Daley Alley Installing R.R. crossing Massachusetts Ave., No. Cambridge No. Cambridge, B+A crossing No. Cambridge B+M No. Cambridge crossing North Cambridge B+M R.R. crossing 336-338 Western Ave., Cambridge 336-338 Western Ave., Cambridge Rear River St. c.l. Cambridge Wharf at E. Cambridge Power Station, looking easterly Wharf at E. Cambridge Power Station, looking east Wharf at E. Cambridge Power Station, looking westerly Underplatform of wharf of E. Cambridge Power Station looking east Wharf at E. Cambridge Power Station, looking W. under platform where wharf was crowded outward Wharf at E. Cambridge Power Station after planking removed Wharf at E. Cambridge Power Station, planking and stringers removed Removing seawall to E. Cambridge Power Station Progress on excavating back of seawall E. Cambridge Power Station Excavating back of seawall E. Cambridge Power Station Piling to wharf E. Cambridge Power Station Seawall, E. Cambridge Power Station Seawall and foundations E. Cambridge Power Station Seawall and wharf at E. Cambridge Power Station E. Cambridge Power Station, seawall and foundations E. Cambridge Power Station Foundations of seawall at E. Cambridge Power Station Foundations of seawall E. Cambridge Power Station E. Cambridge Power Station portion of view seawall E. Cambridge Power Station Wharf at E. Cambridge Power Station looking n.w. Wharf at E. Cambridge Power Station E. Cambridge Power Station general view of wharf looking southerly Wharf at E. Cambridge Power Station Warf at E. Cambridge Power Station E. Cambridge Power Station progress on wharf E. Cambridge Power Station progress on wharf looking westerly E. Cambridge Station progress on wharf looking westerly E. Cambridge Power Station concrete foundations E. Cambridge Power Station e. side of coal run E. Cambridge Power Station w. side of coal run