CAPACITY F()l; IIKAT <>F MKTAI.S AT MFFKKKNT TKMI'KKATPKKS. 175 



I-IO 



1-09 



J 



20 



60 



Temperiture. 



80 



ioo 



120" 



Fig. 8. Variation with temperature. 

 (Assuming specific heat at 0* C. aa unity.) 



A noticeable decrease in the increment of the specific heat of zinc is observable at 

 temperatures above 50 C., which may have some connection with its change in physical 

 properties, as zinc becomes malleable about 120C. For this reason we pushed our 

 examination of this metal up to a temperature of 123 C. 



Our thanks are due to the Court of the University of Wales for a grant towards 

 the purchase of the specimens of metals. 



We are greatly indebted to Mr. EDGAR A. GRIFFITHS, of this College, for his help 

 in the construction of apparatus and in the conduct of the experiments. 



SECTION XIII. 

 Discussion of the Results of NERNST'S Observations at Low Tempi- ratures. 



[After the preceding paper was written, it was suggested to us that we should 

 discuss the relation between our experiments over the range C to 100" C. and 

 those of N ERNST at lower temperatures. We feel, however, that a discussion of this 

 kind would carry more weight after the completion of our own work at temperatures 

 below C. 



