( 563 ) 
Introducing the factor 4 we find: 
B,=1—(1- eh) el 
B eh —xh 
OMAN 
ah 
B} = —- 37 ech a, Ve 
ath’ 
a ahaa Bree He Veld. 
4! 
Values of these integrals are given in Table VIII and corre- 
sponding values of the function in Table VII. The figure shows how 
a frequency-curve (full line), as represented by the wp functions, is 
constructed out of its components (broken line) for the case that 
both 4 and A, are equal to unity, which does not differ much from 
the conditions which obtain at Batavia during the dry season. 
The integration between fixed limits of formula (1), Type III, is 
very laborious; substituting : 
we find by development : 
o 
U et! 1 pl 2? 
[ute tn PoE op le 
: met) p+ p+2 p+3 2! i 
0 
38* 
