Abstract
In this paper the author gives an extended account of the work undertaken to determine whether the liquid state extends above the critical temperature, or whether it is bounded by an isothermal line passing through the critical point, as had been indicated in a former paper. A large apparatus was constructed, with several improvements before described, details of construction being given in the full paper. It was found that manometers with small bores gave higher readings than those with larger internal diameter, so the manometers used were of the largest size compatible with the strength required to resist the pressure. The thermometers were carefully prepared by heating and cooling, and compared with the standard at Kew.
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