One of the most notable books on eastern trees and shrubs to appear in recent years is Brown and Brown’s authoritative reference work, just off the press. The two authors (no re lation to each other) have spent many decades of study of the subject: field exploration, arboretum culture and observation, herbarium and library study, and have taught botany to hundreds of college students at the University of Maryland and at Frostburg State College. It may well be said that the statements made in the book have been tried and tested most thoroughly.