Since the publication of the second edition of this book, and an arti cle from the author's pen in the Century Magazine for September, 1890, numerous letters of approval from old comrades have been received, and a few dates obtained from old official correspondence that will now be introduced. In addition to what may properly belong to this history, there have been introduced a few remarks concerning the habits and character of the Indians. This subject is not entirely new, but the Opinions expressed are the results of many years acquaintance with various tribes, and may be useful. The incidental remarks about game will probably interest some. To the author, the study of nature in all its aspects has been interesting. The author's views regarding the gold deposits and glaciers of the Sierras are given simply as suggestions. His especial efforts have been directed to the placing on record events connected with the discovery of the Yosemite, for description of its scenery he feels to be impossible. In reverent acknowledgment of this.