In its revised form this is probably the most complete manual of its kind. A tremendous undertaking as comprehensive as it is possible to make such a study and expertly arranged. It is so technical, however, that only a student familiar with forestry and its terms will be able to understand the descriptions. This limits the sale to libraries, for reference work, and to nurserymen, landscape architects, professors teching nature classes and individuals who want to make a study of trees and shrubs.