Reasons humbly offer'd to the consideration of the publick : shewing how the works now executing by virtue of an act of Parliament to recover and preserve the navigation of the river Dee, will destroy the navigation : and occasion the drowning of all the low lands adjacent to the said river : from observations made on the spot, and from instances of the ruinous effects like works have had at the ports of Lyn, Rye, Wisbech and Spalding.