THE 



DEPTHS OF THE SEA 



AN ACCOUNT OF THE GENERAL RESULTS 



OF THE 



DREDGING CRUISES OF H.M.SS. 'PORCUPINE' AND ' LIGHTNING 

 DURING THE SUMMERS OF 1868, 1869, AND 1870, 



UNDER THE SCIENTIFIC DIRECTION OF 



DR. CARPENTER, F.R.S., J. GWYN JEFFREYS, F.R.S., 

 AND DR. WYVILLE THOMSON, F.R.S. 



BY 



C. WYVILLE THOMSON, 



LL.D., D.Sc., F.R.SS. L.&K, F.L.S., F.G.S., ETC. 



Reyius Professor of Natural History in the University of Edinburgh, 



Ami Director of the Civilian Scientific Staff of the 'Challenger' Exploring Expedition. 



WITH NUMEROUS ILLUSTRATIONS AND MAPS. 



LIBRARY 



UNIVERSITY OF CALIFpRNIA 

 DAVIS 



MA CM ILL AN AND CO. 



1873. 



