TRANSACTIONS 



OF THE 



ROYAL SOCIETY OF EDINBURGH* 



Vol. VIII. 



^^Sn>_/S^ SJ'" 



EDINBURGH, 



PRINTED FOR ARCHIBALD CONSTABLE & CO. AND FRANCIS PILLANS ; 



AND FOtt 

 CADELL AND DAVIES, STRAND, AND JOHN MURRAY, ALBEMARLE STREET, 



LONDON, 



1818. 



