_Lincoln, the Politician_, by T. Aaron Levy, and _Latest Lights on Abraham Lincoln_, and _War Time Memories_, works published by Badger and Revell respectively, are two important volumes throwing light on the Civil War.
Among the Washington University Studies has appeared a monograph by C.
S. Boucher ent.i.tled _The Secession and Cooperation Movements in South Carolina, 1848 to 1852_.