HARPERS MONTHLY, N.Y., May, 1867 Beginning on the front page is a 17 page article: "The Pictured Rocks Of Lake Superior". Taking much of the ftpg. is a nice illus. of "The Chapel, Looking West", while the inside has 17 more illustrations, 8 of which show other famous rock formations on Lake Superior. Octavo-size, 134 pages, disbound, in good condition.