PREFACE ... And behind the Northern Armies came another army of men. They came by the hundreds, yet each traveled alone. They came on foot, by mule, on horseback, on creaking wagons or riding in handsome chaises. They were of all shapes and sizes and descended from many nationalities. They wore dark suits, usually covered with the gray dust of travel, and dark, broad-brimmed hats to shield their white faces from the hot, unfamiliar sun. And on their back, or across their saddle, or on top of their wagon was the inevitable faded multicolored bag made of worn and ragged remnants of carpet into which they had crammed all t