Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Humber Conservancy > Parliamentary Bills and Provisional Orders: Representations to Parliament, or the Board of Trade, by the Humber Conservancy Commissioners > Humber Conservancy Dredging Order—Session 1906 > Humber Conservancy Dredging Inquiry: Copy Observations made by Aire and Calder Navigation to Board of Trade