Errata in Vol. XIV. (October 1882). 

 Page 297, line 32, for A+w' is A+«*'{&c 

 read A+w' is A+w'- {&c. 



— - line 33, for u'u" — \- - (B-A) 



readw'+w" — - (B — A) 

 n 



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