Encyclopaedia Britannica, 11th Edition, "Hearing" to "Helmond"

part corrected, as regards increase of vapour-pressure, by Gay-Lussac,

Dulong, Regnault and other investigators, but were found to be as close an approximation to the truth as could be obtained with such simple expressions. More accurate empirical expressions for the increase of vapour-pressure of a liquid with temperature were soon obtained by Thomas Young, J. P. L. A. Roche and ot...