Canals, Interoceanic - Ireland - Early works to 1800

A letter to a member of the honourable the House of Commons, of Ireland . Shewing the utility and necessity of making the canals from the sea, below Newry, to Drumglass Colliery, in the county of Tyrone, navigable for sea vessels, according to a plain laid down by that Honourable House, in the session of 1759. By a friend to the manufactures of Ireland.