(t\ IlOLILATKKAI. TKl.WCr.KS. 62: 



R/ 





Again. P\+ P \ = ^^'-'^^ + ^^-L 



_; (^ «-y(^^ «^J \f>' ir-)\'' /3O 



1 



Hence 1 = Afi^^-I^ U X f " ^ '' ^) ^ ^^ (' v ^ _ v M 



..^ Vfr'~2v'2; ^ v^■-2v/2; 8 V2 rr W" 



The right side gives, possibly, a solid inner eliipsoidal shell as the 

 locus of ^\y : : but I have not yet succeeded in finding the niaxi- 

 nuini value of the expression, subject to the known equations. 



