• publisher: Ottawa : Published by the authority of the Sub-Committee of the Privy Council for Scientific and Industrial Research
  • creator: King, Louis V., 1886-
  • Keyword: Fog-signals. Sound-waves.
  • years: 1918.
  • pages: 8 p. ;
  • class: VK388
  • notes: Title and imprint from cover.
  • download: pdf file