60 



IOWA ACADEMY OF SCIENCE 

 RESULTS. 



The results obtained are given in the following tables and 

 curves : 



TABLE I. 



Electrode Potentials in Water-Pyridine /Series at 25°. 



TABLE II. 

 Electrode Potentials in Water-Pyridine Series at 0°. 



Mean Temperature Coefficients of Electrode Potentials. 



.000045 +.000430 



+.000762 +.O0O771i +.001293 



