Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Humber Conservancy > Board of Trade Enqury into the Humber Conservancy Dredging Scheme: Deposit of Dredgings from the Hebble Shoal > The Humber Conservancy Dredging Scheme: Deposit of Dredgings from the Hebble Shoal: Minutes of Evidence