d
. "Captain Markham's interesting volume has the advantage of being written by a man who is practically conversant with the subject."—
Pall Mall Gazette
.
By SIR C. WYVILLE THOMSON, LL. D., F. R. S., &c.
THE DEPTHS OF THE SEA.
An Account of the General Results of the Dredging Cruises of H. M. SS. "Lightning" and "Porcupine" during the Summers of 1868-69-70, under the Scientific Direction of Dr. CARPENTER, F. R. S., J. GWYN JEFFREYS, F. R. S., and Sir WYVILLE THOMSON, Director of the Scientific Staff of the "Challenger" Exploring Expedition. 8vo, extra gilt, with nearly 100 Illustrations and Eight Coloured Maps and Plans. Second Edition 31
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. 6
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