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"Log is an apparatus for ascertaining the rate of a ship's motion. In a steam engine, a tabulated summary of the performance of the engines and boilers, and of the consumption of coals, tallow, oil, and other engineers' stores on board a steam vessel."—(Charles Leonard-Stuart, 1911)

Log and Reel

"Log is an apparatus for ascertaining the rate of a ship's motion. In a steam engine, a tabulated summary…