John Gwyn Jeffreys

2 books

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, J. Gwyn Jeffreys, and Dr. Wyville by John Gwyn Jeffreys, Sir Charles Wyville Thomson, William Benjamin Carpenter

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, J. Gwyn Jeffreys, and Dr. Wyville

John Gwyn Jeffreys, Sir Charles Wyville Thomson, William Benjamin Carpenter

658 pages • first pub 2015 (editions)

challenging informative reflective medium-paced
Last Report on Dredging Among the Shetland Isles by John Gwyn Jeffreys

Last Report on Dredging Among the Shetland Isles

John Gwyn Jeffreys

116 pages • missing pub info (editions)

nonfiction history