1224 industrial and engineering chemistry vol 26 no 11 his co workers 3 of the linde laboratories devia tions were calculated by taking heat content satu rated liquid at 60 f both sets data equal values obtained present authors then subtracted from to give deviations plotted lower reported other observers for saturated are due their extrapolated specific much larger deviation gas is divergence latent heats vaporization as indicated in figure directly measured indicate a somewhat higher value than was application clapeyron equation here since some distance order obtain upper end temperature range 125 agreement consid ered satisfactory acknowledgment results part work research project 37 american petroleum institute thanks