always easily surmounted, though more dangerous to the veracity of itinerary narratives than imperfect mensuration. An observer deeply impressed by any remarkable spectacle does not suppose that the traces will soon vanish from his mind, and, having commonly no great convenience for writing"—Penny and Letts are of a later date—"defers the description to a time of more leisure and better accommodation. He who has not made the experiment, or is not accustomed to require rigorous accuracy from himself, will scarcely believe how much a few hours take from certainty of knowledge and distinctness of imagery; how the succession of objects will be broken, how separate parts will be confused, and how many particular features and discriminations will be found compressed and conglobated with one gross and general idea." Brave words, somewhat pompous and diffused, yet worthy to be written in letters of gold. But, though of the same opinion with M. Charles Didier, the Miso-Albion (Séjour chez le Grand-Chérif de la Mekkeh, Preface, p. vi.), when he characterizes "un voyage de fantaisie" as "le pire de tous les romans," and with Admiral Fitzroy (Hints to Travelers, p. 3), that the descriptions should be written with the objects in view, I would avoid the other extreme, viz., that of publishing, as our realistic age is apt to do, mere photographic representations. Byron could not write verse when on Lake Leman, and the traveler who puts forth his narrative without after-study and thought will produce a kind of Persian picture, pre-Raphaelitic enough, no doubt, but lacking distance and perspective in artists' phrase, depth and breadth in fact, a narrative about as pleasing to the reader's mind as the sage and saleratus prairies of the Far West would be to his ken.
In working up this book I have freely used authorities well known across the water, but more or less rare in England. The books principally borrowed from are "The Prairie Traveler," by Captain Marcy; "Explorations of Nebraska," by Lieutenant G. A. Warren; and Mr. Bartlett's "Dictionary of Americanisms." To describe these regions without the aid of their first explorers, Messrs. Frémont and Stansbury, would of course have been impossible. If I have not always specified the authority for a statement, it has been rather for the purpose of not wearying the reader by repetitions than with the view of enriching my pages at the expense of others.
In commenting upon what was seen and heard, I have endeav-
