905 
A p' 
Again t approaches logarithmically to oo and w;* to EERS wen, 
ee 
just as in (¢,), derived in $ 3 with two separate forces. 
In order to render a comparison possible, we must now again 
introduce the maximum work A performed by the attractive forces. 
From (4°), i.e. 
af xv a «a 
(ls VL = 9) SS ee 
mk [ EEN asl 
tollows that this will be maximum, when ‘8 ee so that 
(J—s)? a 
2 En 
(o) == =( ln 
Multiplied by */, Nm, we get oe (Cf. Note 1) 
TS 3 
Nf (l— = = ==. 
l—s)? 2 
As further g? ee eae we get: 
u. m 
32 (1—a)* 
2 
= 64 X ed. 
32 32 (1— a) 
1! WN, 
[2 4¥m x 
peu,” = Nf(i—s)’. 
Thus we find for 1/, Nm u; IRT, because '/, Vmu,?=?/,L,= 
==, (EA): 
1 2 16 < 
RT= a en tee) 
64 « °/, A lo 64 A ' 
eee 0 Te 
: 7 ahs 6L : 
as against R7’=— ne ae the former assumption of two separate 
oo 
has ETS 
forces (see Note 3). The coefficients are different, but the logarithmic 
relation has remained entirely the same. 
As however our former assumption leads to better coefficients 
than the assumption (2) of Note 4, elaborated by us in this paper, 
and as it does so both for high and for low temperatures, we can 
in future, by the side of the latter procedure, also base ourselves 
on the supposition — which is simpler for the calculations — of 
two separate forces, in which the repulsive force begins to act at 
x=—=l—o, after the attractive force has reached its highest point. 
I hope that the foregoing Notes go to clear up some of the diffi- 
culties that might have presented themselves in the reading of my 
59 
Proceedings Royal Acad. Amsterdam. Vol. XXIII. 
