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      Scientific American January 13, 1917

      What the French Helmet will Stand

      • By Edward C. Crossman on January 13, 1917

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      More in the January 13, 1917 issue of Scientific American
      • Model Prison to be Built in Illinois, When a Fly-Wheel Bursts and more
      • Morning and Evening Stars for 1917
      • Simple Methods of Determining Rifle Muzzle Velocities
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