BRIDGMAN. — MERCUKY UNDER PRESSURE. 



371 



already explained that the calculation was by means of a method of 

 successive approximations, and that it was necessary to calculate the 

 compressibility of the water as well as that of the mercury. The de- 



2 4 6 8 .10 



PRESSURE, KGM/CM^XIO: 



Figure 5. The change of volume of liquid mercury at 22° as obtained 

 with two piezometers. The right-hand scale is for No. 10, the left-hand one 

 for No. 8. 



tails of this approximation process have been discussed already in the 

 general discussion of the method. Reference is made to a follo^ving 

 paper for the values for the compressibility for water. The procedure 

 in the first steps of the approximation process did not need to be so 

 elaborate as in the above final calculation. 



