CONVENTION DATES
Feb 24-27—AMERICAN CONCRETE INSTITUTE. Annual Meeting, Detroit, Mich. Secretary, Harvey Whipple, 1807 Hast 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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