. . . In the state of Missouri slavery is often denounced with a will. Large bills, advertising "Uncle Tom's Cabin," and the "Key," are posted in many places. I saw the book in many hands, and discussion is a certain consequence. The sentiment is even now expressed, that the state which is to have a thousand miles of railroad in twelve years, could afford to buy and liberate all its slaves, and be the richer in dollars by the rise of their lands, such would be the increase in immigration. . . .