402 



Mr. W. B. Burnie on the Titer mo-elect 



ric 



In tbe experiments, the tube containing the cold junction 

 was cooled as far as possible with the freezing-mixture, and 

 allowed to warm slowly up. Readings of the galvanometer 

 were meanwhile taken every thirty seconds, as follows : — 



I 



p- 

 o 

 Q 



>H^ E II 



E.M.F. in Arbitrary Units. 



First, a reading from the temperature-determining thermo- 

 element with the current direct ; then a reading from the 

 same element with the current reversed ; then a reading from 



