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SCIENTIFIC PROCHKEDINGS 
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ROYAL DUBLIN SOCIETY. 
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218434 
DUBLIN: 
PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 
PRINTED BY ALEX. THOM & CO., 87, 88, & 89, ABBEY-STREET, 
THE QUEEN’S PRINTING OFFICE. 
FOR HER MAJESTY’S STATIONERY OFFICE, 
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