Abstract
The resistance of surface layers of hexagonally ordered dielectric spheres in 
was measured in a large conductivity cell. In agreement with theoretical predictions, a dielectric sphere on an electrode surface was found to obstruct the flow of charge somewhat less than a sphere in the bulk electrolyte. Equations derived for estimating the resistance of ordered and random dispersions of a nonconducting phase in an electrolyte yield values in good agreement with data obtained for densely packed single and multiple layers of bubbles on electrode surfaces. The resistance caused by an electrolyte layer packed with a single layer of uniform diameter dielectric spheres (0.605 void fraction) in the direction normal to the layer is five times larger than in the absence of spheres.