Little P'ei shows his royal father's advisors how to weigh an elephant in this skillfully retold tale of the boy who, the last line informs us, grew up to be Ts'ao P'ei, EMPEROR OF ALL CHINA, almost 2000 years ago. The elephant is a gift from the Satrap of India, and no one knows what it weighs until P'ei suggests putting it on a sturdy boat, marking the water line, then filling the boat with stones until it is weighed down to the same line. Miss Wolkstein is a storyteller in schools and libraries and on the radio; the lovely watercolors, in soft greens with spots of rainbow colors, are by Ed Young whom you will remember for his distinguished cut-paper illustrations for Yolen's The Emperor and the Kite (1967) and Wyndham's Chinese Mother Goose Rhymes (1968).