Publisher's Synopsis
Excerpt from A Comparison of Rowland's Mercury Thermometers With a Calendar-Griffiths' Platinum Thermometer: A Comparison of the Platinum Thermometer With a Tonnelot Thermometer Standardized at the Bureau International Des Poids Et Mesures; And a Reduction of Rowland's Values of the Mechanical Equivalent of Heat to the Paris Nitrogen Scale
The temperature of the water in the calorimeter was then raised at a rate of about 10° to I 5° per hour to the next temperature at which a comparison was to be made; this was accomplished by sending a suitable current through a coil wrapped on the outside of the calorimeter. When the desired temperature was reached, the current was cut off or so regulated that the temperature was very slowly rising, when a further series of simultaneous observations were taken, and so on to the end of the scale.
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