[Aveust, 1897. ] 
THE 
SCIENTIFIC TRANSACTIONS 
OF THE 
mere DUD EIN SOCTHTY, 
VOLUME VI.—(SERIES IL.) 
X. 
ON THE ORIGIN OF THE CANALS OF MARS. By J. JOLY, M.A., B.A.I., Sc.D., 
F.R.S., Hon. Sec. Royal Dublin Society. 
(Pirates XV. anp XVI.) 
DUBLIN: 
PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 
WILLIAMS AND NORGATE, 
14, HENRIETTA STREET, COVENT GARDEN, LONDON; 
20, SOUTH FREDERICK STREET, EDINBURGH; anp 7, BROAD STREET, OXFORD. 
PRINTED AT THE UNIVERSITY PRESS, BY PONSONBY AND WELDRICK. 
1897. 
