144 electrical resistance, etc. of ice. johnstone. 



' . ' " Summary. 



1. The specilic resistance of ice lias been determined at 

 temperatures ranging from 0° to — 19 °C. 



2. The effects of electrolytic-polarization have iDee'i 

 eliminated bv the method used. 



3. The value of the temperature-co-efficient of the resist- 

 ance of ice has heen determined at different temperatures and 

 its value has heen found to he very much higher than the tem- 

 perature-co-efficient of ordinary electrolytes. It decreases in 

 value as the temperature decreases from. zero. 



The values obtained for the specific resistance of ice com- 

 pare fairlv -n-ell vrith those obtained by Avrton and Perrv, 

 using a different method. 



In conclusion I wish to thank Dr. H. L. Bronson. who 

 suggested this work, and without whose kind supervision and 

 assistance, this research could not have beer undertaken. 



Dalhousie University, Halifax, X. S. 

 April 20th, 1912. 



