At head of title: Laboratory of the Inland Revenue Department. Ottawa, Canada.
Signed (pages 5): A. McGill.
Dated: Ottawa, Oct. 3, 1914.
Original issued in series: Bulletin / Canada. Inland Revenue Dept. Laboratory ; numbers 290.
Chiefly tables.
Correction--p. [2]
Filmed from a copy of the original publication held by the National Library of Canada. Ottawa : Canadian Institute for Historical Microreproductions, 1998.