"In 1934, Webster's Second was the great gray eminence of American dictionaries, with 600,000 entries and numerous competitors but no rivals. It served as the all-knowing guide to the world of grammar and information, a kind of one-stop reference work. In 1961, Webster's Third came along and ignited an unprecedented controversy in America's newspapers, universities, and living rooms. The new dictionary's editor, Philip Gove, had overhauled Merriam's...