Mr. Jarrett on Algebraic Notation. 



87 



^St 



CO ,,(+« 



m 1 



7 + 4 '{\^~\:;;ta |4w-|3 7j.4.- 



m 



4 



<+4 (-H i:r _3 



+ [3w 



<+4 



4.3 « 







»» 



= 1 + ^ ( |— . 



00 ,,«+4 



m 1 



^''t±ife-ii-*'ei^'>-£>-iET 



(-1)-' 1 



m 



-b-s 



Hence, probably. 



«^.i.,s,j-.(^' 



( --+1 



(-1)-' 



1 



n(r+ 1 -s). r , , 



br^ ^ ' — r s - 1 m - > 



n ) 



