Part of his trilogy on Scottish history, T. M. Devine's To the Ends of the Earth is a compelling account of the Scots as a "global people," charting their forgotten role in the building of the modern world. The Scots are one of the world's greatest nations of emigrants. For centuries, untold numbers of men, women, and children sought their fortunes in every part of the globe, from the British Empire to the United States, in cities and on prairie...