THE LAW (314 pp.)Roger Vailland Knopf ($3.95).
What the tourists see in the south Italian fishing town of Porto Manacore is fine Adriatic beaches, offshore islands ideal for skin diving and a somnolent landscape of ripening fruit orchards. French Novelist Roger Vailland looks around more sharply, and what he sees is far less pretty In The Law (a Book of the Month Club selection and 1957 winner of France's famed Prix Goncourt), he coolly examines a hand-picked cast of Manacoreans and discovers without surprise that their lives are governed by poverty, cynicism and naked power. A sometime Communist Author Vailland searches out...