512 Proceedings of Royal Society of Edinburgh. [sess. 
— Ocf) + Ocf) + &i + + 5g 
Ocf) 4- & 2 + + 5 4 Ocf> + + 5 4 -t- 
6<h + & 4 4- + 5 6 Ocf) + 5 5 + 5 ( 
5« Ocf> + 5* 
and now diminishing the second column by the first, the third 
by the new second, and so on, we obtain 
*7 = 
Ocf) + + &2 
Ocf) + 5g + b^ 
Ocf) 4- b 5 + b e 
b« 
Ocf) 
+ 4 > 
= 0 
Ocf) + 5^ + &2 
Ocf) + 5g 4- b 4 
Ocf> + b b 4- 5 6 
given in § 2. 
(; Issued separately April 8, 1905.) 
