25 JUNE 1870, Page 20

Guide to the Western Alps. (Longmans.) 1870. Mr. Ball sends

us a new edition of his admirable guide, which has long been the monn- taineer's best authority on all the region to which it refers. Mr. Ball tells us that even since the last edition of this guide was published, "such extensive changes have occurred that it has become necessary to re-write many routes, and to introduce elsewhere extensive corrections and additions."