""Letters to the Right Honorable the Earl of Darnley on the State of Ireland, in Advocacy of Free Trade"" is a book written by J.R. Elmore and originally published in 1828. The book is a collection of letters addressed to the Earl of Darnley, who was the Lord Lieutenant of Ireland at the time. In these letters, Elmore advocates for the implementation of free trade policies in Ireland. He argues that the current protectionist policies are hindering...