( 541 ) 
determine ,, I shall put this equation in a new form by means 
of (VI) namely 
Z 
uy d lo an? ne 
ea re eet: +0 fun — ae 4) ae = 
0 
Z 
d lo : A 
= Const. + (u—1) + fl (n—n' ee ak =) re 
n 
0 
with the aid of (10) we can replace this formula by 
Z Z z 
EN de eef 2 Dea }d xr 
ar Ar 15 phaz @ —DE + 7. tes de …/ ) 
0 0 Zh 
For K, we get finally 
Z z 
d : 
K,= p+ { (ne +2 f Feeds) de EN St 
z 
0 
Zh 
‘ . Cy dn, 
An approximate value for A, can be found, by putting €,, = — BL 
This value for K, amounts to 
Z 
K=—mZ sf dn dn\? te 
‚=p ry re) ELSE Wies 
0 
Z 
. d 2 
~ 
> Pn 
= rid +C, {x SECs, at ota, aM ene fo oe Oe 
. dz* 
0 
When the surface of the capillary layer increases by unit of area 
the free energy (so far as it depends on capillary action) decreases by 
~ 
Z z 
dn 
fre va f Beas) ac We bie avn AEN 
dz 
0 
Zh 
or, if we use the approximate values by 
