CAPACITY FOE HEAT OF METALS AT LOW TEMPERATURES. 
337 
In Part II., where the various theoretical formulae are examined, to avoid confusion 
between experimental errors and systematic divergences, the values from the mean 
curves will be taken as the basis of comparison. 
Fig. 4 exhibits the results graphically over the temperature range which we have 
investigated. 
The letter N denotes the observations of Nernst in the case of silver and of lead. 
(9) N ernst’s Method. 
The work of Nernst at low temperatures has already been referred to and since 
some of his results are quoted below, it is desirable to indicate briefly the method 
by which they have been obtained. 
2 x 
VOL. CCXIV.-A. 
