Several shots from various angles of "dipper" dredge in operation on Saint Lawrence River in Lachine, near Montreal. Several shots from various angles of canal and lock construction operations, location unknown. LSs at site of Côte Sainte-Catherine Lock in winter, snow in evidence. LSs of Beauharnois lock construction, in winter, snow in evidence. Several shots from various angles of canal digging operations. Several shots from various angles of construction operations at Grass River Lock. MLSs of tunnel under the old Cornwall Canal. HALSs of Niagara Falls from Canadian side showing both horseshoe and American falls. MLSs of Woodlands Cemetery on shore of Saint Lawrence River. ML PAN and MLS of Saint Lawrence Valley Union Cemetery. HAS of sailboat moving past camera under motor power, sails down. (06/09/1955)