. ae ea. a 
[Avausr, 1897. ] 
THE 
SCIENTIFIC TRANSACTIONS 
OF THE 
mew, HUBuEN SOCTETY. 
VOLUME VI.—(SERIES II.) 
X. 
ON THE ORIGIN OF THE CANALS OF MARS. By J. JOLY, M.A., B.A.I, S8c.D., 
F.R.S., Hon. Sec. Royal Dublin Society. 
(Puates XV. anp XYI.) 
DUBLIN: 
PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 
WILLIAMS AND NORGATE, 
14, HENRIETTA STREET, COVENT GARDEN, LONDON; 
20, SOUTH FREDERICK STREET, EDINBURGH; anv 7, BROAD STREET, OXFORD. 
PRINTED AT THE UNIVERSITY PRESS, BY PONSONBY AND WELDRICK. 
1897. 
Price One Shilling. 
