Thomson's Voyage of the "Challenger."
The Voyage of the "Challenger." The Atlantic: An Account of the General Results of the Voyage during the Year 1873 and the Early Part of the Year 1876. By Sir C. Wyville Thomson, F.R.S. With a Portrait of the Author, many Colored Maps, And Illustrations. 2 vols., 8vo, Cloth, $12 00.