THE NATIONAL ARCHIVES has been called variously the nation’s memory, storehouse, attic, and soul. The institution is known as the place where Americans can find their roots, as the country’s Hall of Heroes, and, by cynics, as the nation’s wastebasket. All these labels are, in fact, perfectly apt. In the handsome National Archives building on Pennsylvania Avenue in Washington, in the fifteen regional records centers, and in the seven presidential libraries—which altogether make up the National Archives—are stored 3,250,000,000 documents, 5,000,000 still pictures, 91,000,000 feet of motion pictures, and 122,000 sound and video recordings. The range is breathtaking: the most important holdings are the nation’s birth records—the Declaration of Independence, the Constitution, and the Bill of Rights—which, carefully guarded and preserved, are on permanent display; less awesome are such homey exhibits as a handwritten letter from Queen Elizabeth of Great Britain to President Eisenhower, sending him a recipe for “Drop Scones.”