298 
2d 
Ts - RE —-~—~, hence T(o—l)? — 3 (1—b))d. 
1.85 See 
2 (1—d) 
Now 1+ +1(g — 1)? may be written for the factor (1 + ro (o—2)): 
(1—r) in (5) for small values of rt, which in view of the above 
3 (1—b')d 
ee 
approximated relation becomes 1 + 
Now o=3 (1—0’) = for small values of rv. This being about 6, 
T— 
2,5 (1—6’) = may be put for e—1, so that we get approximately 
pe 
Dd bed : 
Tsai —0 for the factor in question. Hence the factor @ in 
t Uy 
p 2 eer : 
R T=; TE X 6, referred to in the first part of this paper, 
will evidently according to (5), when for d its value is substituted, 
amount to: 
Cee Eeklo Std 
1 Sek PB 5 oP 2 (i= be 
holding for very small values for «. Only a small value of 7, e.g. 
r=1,5, satisfies this. If has then become =O, and 6’ ='/,, @ 
becomes 
2 
e=! tm |er 
while with r=1,5 (see the first part of this Paper in these Proceedings, 
$8, p. 278) 9 should be exactly =1. Possibly @ is not small enough 
to justify the above approximations and the neglect of certain values, 
and then it is possible that r > 1,5 drops out. But the calculations 
get very intricate then. 
At any rate the formulae (4), (5), and (6) contain the full solution 
of the problem put by us. 
La Tour près Vevey, spring 1920. 
