Phil.Mag.S.5.Vol.35.Pl.VI 



Fig.l 



eciiciLal elexaticni c( the sjzy, 

 \uiutce & apjjuj^fej ecu 'ices 



\cnvuuf QtA cr-udU^-iti 

 ^'cale V4 



Crizxxble. , slwyvirtg the .soh'xL 

 cfaccnge 6c > <xoa aljilcdbuajuri 

 iccbe. . ScctZe, %t . 



9 9 

 Fid. 2. 



Sectu.'iicJ plcLTL of fvurru^jcey^crxjuaji'tl^. 



Sccd^yq-. 



7 00° 



is do 



Ft g . 4- . 



Cltai'f .shmriiuj lite rcloiwn of Lhc/'inn / OUpCLCl iv. solid. & 



Series II. 



Mult BtT I");-.).-' \xth 



