Abstract
In continuation of the research described in Part 1 (Temperley and Chambers, 1946), a further examination of the Berthelot method of producing tensions in liquids has been made. The critical tension of water has been measured by a method which does not assume that the extensibility and compressibility of water are equal, and other evidence in confirmation of this assumption has been obtained. It is concluded that high pressures are necessary in the Berthelot tube to force the final gas bubble to dissolve in a reasonable time, and that this fact is probably due to the low rates of diffusion of gases through liquids. It is also concluded that there is a large discrepancy between the theoretical and the observed strength of water.