TRANSACTIONS 
OF THE 
Roy AL .SOQClLETY 
OF 
EDINBURGH. 
VOL. XVI. 

EDINBURGH : 
PUBLISHED BY ROBERT GRANT & SON, 82 PRINCE’S STREET ; AND 
WILLIAMS & NORGATE, 14 HENRIETTA STREET, 
COVENT GARDEN, LONDON. 

MDCCCXLIX. 
