. Hardware merchandising September-December 1916 . Do you know why a board cannot be cut or divided by a blade witha knife-edge when used in the samemanner as a saw? The answer to this and other curiouspoints about a saw will be found inthe Disston twelve-page booklet, Why a Saw Cuts Send for it HENRY DISSTON & SONS, LIMITED KEYSTONE SAW, TOOL, STEEL & FILE WORKS2-20 FRASER AVENUE - - TORONTO, CANADA If interested, tear out this page and keep with letters to be September 30, 1916. HARDWARE AND METAL 17

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