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This addition to the fonds consists of maps, correspondence and related documents of the Bronson Company, the Gatineau Power Company, and the Ottawa Power Company collected by William Hamilton Munro.

This fonds consists of correspondence, drawings, reports, press clippings, biographical material, photographs, maps, slides, manuscripts, publicity materials and certificates relating to the aeronautical engineering, nuclear engineering, consulting engineering and political career of Winnett Boyd.

This collection consists of texts of papers and speeches written by William Sansome Tucker, D.Sc., A.M.I.E.E. in his particular area of expertise-sound phenomena-as well as other topics. Also included are letters patent, photographic and diagram illustrations as well as a few tear-sheets from periodicals about his work. There are also two or three papers by Dr. Tucker's colleagues.