34 Choice in the Distribution of Observations 
and, according to I under (6), 
2.p^'ti ~ iv-i'^ii ]\r (■'^ h o.) X 
1 + a 
1 + a 
1 
1 
a 
1 + a 
i + a 
1 
1 
'■2/> + 1 2p + 3 
+ a 
2p- 1 
1 
2^9+ 1 
1 
2j9 + 3 
4/; - 1 
1 + a 
l + a 
2j9 - 1 + 2jj + 1 
and 
+ a 
o T + ^ 
2^^ + 1 
- 3 
1 
1 
+ a 
1 
2|j + 3 2j9 + 5 
2j^+ 1 
1 
2p + 3 
1 
2^ + 5 
+ a 
+ a 
4;^+ 1 
2ji; + 1 ' 27^ + 3 
1 
2^r+ 1 
1 
2jo + 3 
4^3 - 1 
+ a 
+ a 
+ 3 2j9 + 5 
P + a 
1 
2^3 + 3 
1 
2j9 + 5 
+ a 
4j9 + 3 
+ a 
(41). 
(2) For the reduction of these formulae we have to evaluate the determinant 
of pih. order 
