W 5 



THALASSA 



AN ESSAY 



ON THE 



gcjjtlt, ffltynjimtoty Hitd dfurr^nte of t\\$ Ocean 



BY 



JOHN JAMES WILD 



Member of the Civilian Scientific Staff of H:M.S. "Challenger 



,it\) Cfjarts anti Btagrams fcg tfje lutfjot 



ILon&ott: 



MARCUS WARD & CO., 67 & 68, CHANDOS STREET, STRAND 



And ROYAL ULSTER WORKS, BELFAST 

 1877 



