CONVENTION DATES
Feb 24-27—AMERICAN CONCRETE INSTITUTE Annual Meeting. Detroit, Mich. Secretary, Harvey Whipple. 1807 East Grand Boulevard, Detroit. Mich.
March 4-6—CANADIAN DISTRICT NO. 1, AMERICAN WATER WORKS ASSOCIATION. Annual Convention, Windsor Hotel. Montreal. Secretary, A. U. Sanderson, Filtration Plant, Toronto.
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