108 O. I. Broch 



®, = S j.n' f„ (rOØI^f _ i) j - S |m f, (r') I - 



2 o Sm' 



-e'd;,S?^d,.f, 



l20 ^ ' 



.5 = SJ™d,f,(r0(^,ï:i'_l)j- 



— £'d^ s i'ii^ d / A''^''^^'0\ xsink^ ijJ^aîlHl ^"^^'"^ \\ , 

 Bemærker man nu at: 



