ELECTRICAL CONDUCTIVITY OF BASES. CREIGHTOX. 155 



The apparatus used consisted of the following: 



1. An induction coil and accumulator. 



2. Liquid resistances (electrolytic). 



3. Two variable condensers. 



4. An electrolytic cell for the liquid being investigated. 



5. A telephone. 



The glass vessel used to hold the electrolytic resistances was 

 of the form shown in figure 1. The arms AB and CD are 

 about 10cm. long, the internal diameter of the former being 

 5mm. and of the latter 0.8mm. The platinum electrodes which 

 fit inside these arms may be raised or lowered by turning. Both 



FIG. l. 



