The same problem of language difficulty will be encountered here, and the subject matter is, perhaps, less familiar. Is it perhaps a differential due to the English origin of the material? Here is the subject of what mountains and valleys signify geographically, economically, socially. Here too is the purely physical aspect -- how they were formed, the different rock structures. Most of the text is closely related to shadow relief maps, and more explanation of how they differ from the familiar type of school geography map would have been advisable. Again a book for supplementary use, in hope that the quite lovely pictures in colorgravure will carry third to fifth graders over the difficulties.