Again the good Dr. Buchwald adds to the five-foot-shelf of his collected daily newspaper pieces, and for sheer volume of columns, he now surely surpasses the Acropolis or the Roman Forum. The eminent sociologist, geopolitical analyst, Capitol pundit, and all around smarty pants dispenses his cigar ash and his waggery with equal profusion. His finger on the pulse of the nation and his elbow in its ribs, Buchwald clarifies such complex issues of our time as fiscal policy, delivery of medical care, and the three martini lunch. Viz.: ""We were given the Panama Canal in perpetuity. That means for life or forever, whichever comes first."" Even such intractable perplexities as the CIA, pollution, and lawyers are not safe from his fearless investigation. With his enlightenment we begin to wonder if officialdom isn't populated with clones of The Three Stooges. His inquiries are assisted by such unlikely fictional creations as Dr. Heinrich Applebaum, Heartongue the Agent, Amy Carter, Bert Lance, and Anita Bryant. True, some of the pieces may be dated, but, like a gross of Paris garters, while they are not all equally snappy, they do hold up. At their best they are a tonic. Like all medicines, these pieces are best not swallowed all at once. Take your time with the latter-day Petroleum V. Nasby.