Book excerpt: The Plant Book for Dumbarton Oaks was prepared as a resource for those charged with maintenance of the gardens following their acquisition by Harvard University in 1941. Beatrix Farrand here explains the reasoning behind her plan for each of the gardens and stipulates how each should be cared for in order that its basic character remain intact. Her resourceful suggestions for alternative plantings, her rigorous strictures concerning pruning and replacement, her exposition of the overall concept that underlies each detail, and the plant lists that accompany her discussion of each garden make this a volume of interest to every student, practitioner, and lover of landscape design.