TY - JOUR T1 - Preliminary Report of Dredging Operations in the Seas to the North of the British Islands, Carried on in Her Majesty's Steam-Vessel Lightning JF - Proceedings of the Royal Society of London (1854-1905) VL - 17 SP - 168 EP - 200 PY - 1868/01/01/ UR - http://dx.doi.org/10.1098/rspl.1868.0026 M3 - doi:10.1098/rspl.1868.0026 AU - Carpenter, W. AU - Carpenter, D. AU - Thomson, W. ER -