IN THE SOLID AND LIQUID PHASES. JOHNSTONE 199 



Measurements of the resistance of sample I were made at 

 different temperatures ranging from 7C. to the melting point. 

 It was found possible to supercool to temperatures as low as 

 OC with comparative ease, so measurements were made in 

 the liquid phase at temperatures ranging from 25C to 0C. 



TABLE 2. 



' Sample 1. Cell Constant 0.166 = M. P. 15.9 C. 



Inx table 2 are given values of the specific resistance for 

 sample I, in the liquid and solid phases at temperatures 

 ranging from 27C to 7C. Curve 1 shows how the specific 

 resistance in each phase varies with the temperature. Starting 

 at the point, c, on curve 1, the resistance at first decreases 

 very slowly with rising temperature, then it begins to in- 



