Speeches of John Bright M.P. on the American Question / John Bright -- Boston: Little, Brown, 1865.

John Bright was one of two important advocates for the Northern cause in the British Parliament during the American Civil War. This volume brings together a number of his speeches on the topic. He makes both a moral case and a practical, economic case against British recognition of the Confederacy. It's entertaining to see the issues from the British perspective. Many of the issues of that time have analogues today.