Tyndall, John, 1820-1893 · New York, D. Appleton · leaf 271
ts heated end, were ascertained by means of thermo-meters fitting into cavities made to receive them; fromthese data, with the aid of a well-known formula, the con-ductivity of the wood was determined. To determine the velocity of calorific transmission, indifferent directions, through wood, the… … lect. is. APPARATUS. 247 is an oblong piece of mahogany, A is a bar of antimony,B is a bar of bismuth. The touching ends of the two barsare kept in close contact by the ivory jaws i f, theother ends being let into a second piece of ivory, in whichthey are firmly fixed. From these ends proceed two…
Heat
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