BRIDGE ACROSS BROKEN TIME: Chinese and Jewish Cultural Memory, by Vera Schwarcz. New Haven/London: Yale University Press, 1998, 232 pp. (cloth).

Staff writer Rarely does a book challenge a reader -- or a reviewer -- as this one does. "Bridge Across Broken Time" is equal parts academic study, meditation and personal memoir. It demands not only reading, but reflection. It is, in short, a daunting assignment, but well worth the effort.

Few people would be capable of covering its terrain -- the way that the Chinese and Jewish cultures use memory -- much less of bringing the depth and intensity that Vera Schwarcz provides. But Schwarcz, a professor of East Asian studies at Wesleyan University and a prolific writer, is an original.

She was born in Cluj, Transylvania, and raised in a household that spoke Romanian, Hungarian and German. She learned Russian and French in school; a tutor taught Hebrew, her parents' language. Her father lost his first wife at Auschwitz; her mother lost her parents, her first husband and a daughter during the war. In the early 1970s, after moving to the United States but before relations between Washington and Beijing were normalized, Schwarcz began her China studies.