190 PROFESSOR A. E. H. LOVE ON THE 



Further, 



16. The equations which hold at the surface r = a can he arranged in such 

 forms as 



A ^?+Br aB+3 f^s-\+C ^+D r 2 "* 3 (-&}= (62) 



" n * + " H ** j 



in which A B , B B , C,, D B are certain functions of a, viz. 





c. = -. 



^- .- .,..;:, (C5) 



D " - da*-^- 4T i '{ a ffi*"'< k<) + '"A-< te )} 



, /7 . ,,-v 



to >" ' ' ............. (66) 



In these formulae a is supposed to he written instead of r in the expressions for 



/., ft,, P., Q.. 



