SOME CANADIAN NON-METALLIC MINERALS A REVIEW OF FIFTEEN YEARS' PROGRESS
In this paper is presented a review of the changes that have taken place in certain Canadian non-metallic mineral industries since 1909. The fifteen-year period 1909 to 1923, inclusive, has been selected for two reasons. In the first place, statistical treatment of the subject under review has been nearly uniform throughout the period.
Canada, Canadian, Corundum, corundum, diatomite, garnet, Malagash, Western Canada, mineral, minerals, Production, Salt, Salts, Stone