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Self-reg′is-ter-ing Ther-mom′e-ter.

One in which the indications of the instrument are recorded at regular intervals of time. The thermometerneedle is attached to a coiled metallic ribbon, whose expansion and contraction by change of temperature oscillate the needle. The independent needles are actuated by this one, and denote the extremes reached. These independent needles have thumb-burrs by which they may be turned. See thermometer.

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