ItRIDflMAN. — TIIKHM(>r)Y\ VMir PHOPF.RTTES OF WATER. 



339 



In presenting the ivsiilt.s, the quantities have been arranged in 

 order of simplicity of the thermodynamic formuhie, which is also 

 the order of cHrectness with which they are derived from the experi- 

 mental data. 



Volume, cm.-' per gm. 



Figure 3. Isothermal lines for water, showing volume against pressure. 



In Table IV are given the values of the volume for intervals of 

 pressure of 500 kgm., and intervals of temperature of 5°. The table 

 does not require comment. It was computed in the way already 

 described. The values of the volume at intervals of temperature of 

 20° are shown as a function of the pressure in Fig. 3. The figure 

 does not show the results as accurately as the table, but enables one 

 to form a clearer mental picture of the nature of the results. The 

 curves, on the scale of the figure, do not show any abnormalities to 

 the eye, except in the neighborhood of the origin, where the well 

 known negative expansion at 0° results in the curves drawing together. 



