Functions formed on Groups. 45 



and (B D = 234561, (3 2D = 256341, (5 8D = 256134, and (B 4 D = 43 6 52 1, 

 each of the four having 12 terms and 60 values. 

 2 = aa/3/jyy. 



Hi. The group of order 6! has I5 2 „ 2 in its title: in our 

 title, art. I. stands 4 222 . The equation 



6o , 4 2 22= 16-15222. 

 shows that each of the 1 5 is found in 16 of our 60 equivalents. 

 Of the 16 containing each 214365, four are 



