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(Footage of freighters and ore carriers in the locks, ice bound ore carriers moored for winter, shots from aboard an ore carrier, and shot of ore ship on lake.)

(Shots of a law professor in his office working with research material, also shot of an elderly reception secretary in an old office area and a man reading a letter at his desk.)

(Footage of UM President Harlan Hatcher.)

(Footage of the locks in operation, the lockmaster, and a working model of the locks.)