Henry A. Boller's four-year sojourn as an Upper Missouri fur trader continues to have a lasting impact on the literature of this great commercial venture of the nineteenth century. Literate and intelligent, Boller wrote with a sympathetic eye toward the Plains Indians, whose traditional way of life was rapidly fading along the frontier. W. Raymond Wood's dedication to scholarship in re-editing this valuable work leaves today's reader with a sense of humanity for those living and dealing with the Upper Missouri Tribes in the mid-nineteenth century.