THE REAWAKENING by Primo Levi. 222 pages. Atlantic-Little, Brown. $4.75.
A horse-drawn Russian army cart creaked to a halt before the cement cellblock at Auschwitz. Gathering their tattered bundles, a dozen silent men crawled into the wagon, huddled together against the cold, and jolted through the gate into the snowy darkness. Among them was Primo Levi, a young Italian Jew who had been interned for two years at Auschwitz and the nearby slave-labor camp of Buna-Monowitz. In an earlier book, If This Is a Man, Chemist-Sociologist Levi recalled his imprisonment in chilling detail....