In the reign of Hsien-tsung of the Yuan dynasty, a bitter dispute arose between Buddhists and Taoists.The cause was the publication of a book called Lao-tzŭ-pa-shi-i-hua-t‘u-shuo by the adherents of the Chuom-chin-chiao sect.It gave a pictorial representation to a tradition that Lao-tzŭ went to India, turned himself into Gautama Buddha and preached.Taoists got the worst of the argument, and copies of the book as well as the printing blocks were, as tradition says, destroyed by fire.We have, however, a book that bears that title.Dr. Yoshitoyo Yoshioka maintains that the existent text was originally compiled by a Taoist called Ch‘ên-chih-hsŭ on the ground of his investigation of its introduction written by Ch‘ên and of the pictures of thirty-...