This is a laboratory workbook designed for providing assistance in a botanical study of woody plants. The thin spiral-bound volume contains a remarkably large number of little aids for the study of trees and shrubs, such as a glossary of terms, illustrations of different types of twigs, leaves, etc., and keys to summer and winter characters of many species. The book could be used in any part of the United States, since it treats species from all parts of the country, even including some introduced plants.