246 



The Ohio Journal of Science [Vol. XVI, No. 6, 



two metals the resistance in the solid as well as in the liquid 

 state is nearly a linear function of the temperature. The rate 

 at which the resistance increases with the temperature is less in 

 the liquid than in the solid state. 



TABLE I. 



Table II gives the temperature coefficient of the resistance 

 of thallium and indium before and after melting. The second 

 column gives this coefficient before melting; the third column, 

 after melting. In the last column of this table is the ratio of 

 the resistance before and after fusion. Within the error of 

 observation this ratio is 2.00 for indium and 1.90 for thallium. 



