( 570 ) 
A 
2 (ke + By’ 
As kg: is always positive, and must be positive, the 
maximum can only be found in a branch where A is negative, 
ie. in the ascending branch. The value of the maximum is given 
by the equation 
On = — 
A 
Ym = Po = 4(k + B) . 
Before we pass to the calculation of a series of experiments of 
SmirH, we will give to equation (4) another form, where not @, but 
the electromotive force / of the inserted cell is used as argument. 
According to equation (1), we have 
N= Lo +E: 
For the descending branch A is positive, namely 
A= Oe 
So we may write for (4): | 
vaN AS 
y= Po Â rend di. 
or 
k 3 
_ (Ao -}- Ey DW ee e (a) 
A 
Y= Tord 
For the ascending branch A is negative, namely 
A= her 
So we get: 
A k+ 6 
= po += Ao B)—— gy (Ao + BF... 
When developing, we find: 
k+6 k+6 teiten, iS 
A 
ss Le ELL 2 pails ot 
