274 On the Distribution of Electricity on Metallic Bodies. 
In the following table is set out in square millimetres the 
areas also of the — electrifications registered on a series of 
plates of the same shape but of different areas, side by side 
with other particulars. 
Areas in square 
millimetres. 
Dimensions in milli- 
metres. 
— electrifications in 
square millimetres. 
100 
225 
400 
1600 
10X10 
15x15 
20x20 
40X40 

64 
225 
1225 
In this paper I have, for the most part, spoken of the distri- 
bution of electricity on metallic plates; but I have satisfied 
myself that the distribution on other- shaped conductors is 
similarly modified by alterations in the direction of the lines 
of force. In illustration of this I subjoin a diagram (fig. 2) 
showing the distributions registered on a cone with a hemi- 
spherical base, placed so that its longer diameter was respec- 
tively parallel and perpendicular to the direction of the lines 
of force. The non-shaded parts of the figures represent the 
zones of no electrochemical action. 
Fig. 2. 
The experiments described and referred to in this paper 
have shown : — 
I. That in a given electrolytic field the quantity, the 
distribution, and the area of electrification on a given metallic 
plate are severally determined by its inclination to the direction 
of the lines of force. 
II. That in a given electrolytic field the quantity and area 
of electrification on a metallic plate of a given area, when its 
plane is perpendicular to the direction of the lines of force, 
are determined by the relation between its length and breadth. 
III. That in a given electrolytic field the quantity and area 
