The Niagara Bridge Centennial (06/08/1948): shot of "Jack Canuck" and beardless "Uncle Sam" shaking hands at border on bridge. Shots of two couples dressed in 1848 clothes strolling by camera, of bands from USA and from Canada marching past camera on bridge. Shot of reverend W Wallace opening ceremonies with prayers. Mayor Houck of Niagara Falls, Ontario, introducing premier George Drew addressing gathering. Shots of people listening. Mayor W Lupton of Niagara Falls, New York, introducing lieutenant-governor Hanley of New York state saying a few words. Shots of lieutenant-governor Hanley unveiling American commemorative plaque, of premier George Drew unveilling Canadian commemorative plaque. Lieutnant-governor Hanley posing by his plaque. Shot of premier Drew and lieutenant-governor Hanley tying ribbons of friendship. Shot of men shaking hands. Several shots of bridge, of rapids. Various shots of ceremony, of people attending. FOLLOW SHOT of diesel locomotive crossing bridge. Sequence on fireworks at night.