50 



For d=^l, 



Trans, Acad. Sci. of St, Louis. 



Table 20. 



B. Or again, instead of Table 6 we may write 



(e) 1 1 + d l + 2d 1+3^ 



(f) 1 2 + d 3 + Sd 4 + Qd 



(g) 1 3 + d Q+M 10+10(i 

 (h) 1 4 + d 10+5d 20 + 15(i 



Table 21. 



where d is any integer. It will be seen that in this set 

 of series, also, the n*^ term of any series is equal to the 



