/INC AT ALL ACES 



L»6EB 



,««! 1S 6Z ij,^. 



•'ANu. 



Trans. Ray. SocEdm... Vol.X.Wl.n XVIE. 





W. ft A £ Jolm.'nDn V.ii^^* 



Eaiatwgk 



Deaffi<^ from aJl Caus&s at (Merent A^e^s : S ye^/ns S-20yearswamm ZO- SO fears- 60- Sec. ye^irsk 



