340 PONTIFICIAE ACADEMIAE SCIENTIARVM SCRIPTA VARIA - 28 
The following table gives the values of ® as a function of # 
for vc=3.5 and 7-p=4% (1). 
The relation between n and © for Ye=3.5 and i—p=4% 
») 
Jt 
y. 
3.70 
2.77 
This table shows that the slightest variation in © involves 
a very large change in n. 
The fact that © be given is thus an insufficient basis for det- 
ermining the constants of the model. The function ¢(8) must 
be considered as a whole. 
i For n infinite, relation (523-5) gives 
-@f{i-0o) 
‘a E—C, 
11] Allais - pag. 244