d d£'^/ 



THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



igebj Saits. 



VOLUME XVII. 



DUBLIN : 

 PUBLISHED BY THE ROYAL DUBLIN SOCIETY, 



BALLSBRIDGE, DUBLIN. 



WILLIAMS & NORGATE, 



J4 HENRIETTA STREET, COVENT GARDEN, LONDON, W.C, 



1922-1924. 



