Errata. 



Page 7 , last line of middle column under n = 4 omit "= c e 2 e 3 JSf(J))„ 

 „ 27, line 18 from top replace it (m 1 , m 2 , m s , . . ., 0)„ by 

 "(m , m t , m 2 , . . ., 0)". 



