192 Conduction and Distribution of the Galvanic Current. 
Bc XXIL.—On the Conduction and Distribution of the Gal- 
vanic Current in Liquids; by Prof. Cuas. G. Pace, M.D., 
Washington, D. C. 
When the poles of a galvanic battery are immersed in a con- 
ducting liquid the current does not wholly pass in the shortest 
distance between the poles but is distributed in all directions out- 
_ ward and to a considerable extent radially. 
Thus if a large plate or dish 
A, is filled with acidulated wa- 
ter and we immerse in it the 
poles P N of a galvanic bat- 
tery the current will be found 
to have the direction generally 
of the arrows, 1, 2, 3, at those 
points. On communicating 
this fact several years since to 
Prof. Henry, he informed me 
that he had noticed it some 
years before, but that his mode 
of illustration was quite dif- 
ferent from mine. The de- 
sign therefore of this commu- os 
nication is only to describe my own method and results, some of 
lich are quite novel. The little oval figures, d, d, represent 
bules of mercury in the acidulated water and their condition — 
“i 
pe 
Rr rae 
