From introduction: The production of gypsum is one of the oldest industries in Canada, and in point of gypsum output Canada ranks third among the countries of the world. Gypsum was discovered in the Maritime Provinces at a very early date, but there is no authentic record..of production until about 1822, when gypsum was mined on a small scale in Ontario. Since.then the production has grown slowly but steadily to more than a million tons. In 1928 the output was 1,205,846 short tons, valued at $3,622,007.

Dataset that includes tide grid location and station data, the FORTRAN programs, procedure files, the card image versions of the tide and wind libraries and velocity data, sequential data files, a wind location matrix and wind velocity fields in a binary format for the Puget Sound Tide Files, Puget Sound Wind Files, and Puget Sound Current Analyses.