4. The edition with notes by Su-Che (蘇轍), a relation of the famous poet and author of the Sung dynasty, named Su also. Che, or as he is also called Tsŭ-yu, seems to have been an eclectic philosopher, and he has incurred severe censure from rigid Confucianists for daring to presume that the doctrines of Shâkyamuni and Lao-tzŭ could resemble those of their Master. His commentary is written in a liberal and generous spirit, and shews, besides, a considerable amount of reading, much in advance of ordinary Chinese authors. 5. Another edition of the Tao-tê Ching, published during the Sung dynasty, was that of Lü-Tung-lai (呂東萊) or Tsu-chʽien (祖謙), also known as Pei-kung (伯恭). He was a very learned Confucianist, and wrote, along with other works, an excellent commentary on the Chʽun-chʽiu (春秋) of Confucius. 6. The Tao-tê-chên-ching-chu (道德眞經註) by Wu-Chʽêng (吳澄). This man was a native of Lin-chiean-hsien (臨川縣) in Kiangsi, and lived under the Yuan or Mongol dynasty. He divided the Tao-tê Ching into sixty-eight chapters by putting, in several instances, two or more of the ordinary chapters into one. His commentary is one of the best and of the most popular among the Chinese literati. This is partly owing to the fact that Wu-Chʽêng was also a well-known Confucianist and a commentator on the classics. His style was Yu-chʽing (幼清), and it is under the name Oi-yeou-thsing that Julien makes mention of him. In Chinese books he is also frequently quoted as Tsʽao-lu (草廬). A new edition of Wu-Chʽêng’s excellent work appeared in the eighth year of Chia-chʽing (1803,) with a preface by Chang-Wên-ping, and another edition with a short supplement appeared in the reign of the late emperor. 7. Under the Ming dynasty there were several good, editions of this work published, but I have been able to obtain only two of them. The Tao-tê-hsing-ming-chʽien-chi (道德性命前集) was published during the reign of Yung-lo in the first quarter of the 15th century. The editor does not reveal his name but uses a _nom de guerre_, and I have not succeeded in ascertaining anything about his history. The commentary which he has written is very useful, and evinces a careful study of his author and a familiar acquaintance with Chinese literature. The text and the headings of the Chapters are said to be after Ho-shang-kung, and the number of the chapters is eighty-one. 8. The Tao-tê-hsing-ming-hou-chi (道德性命後集) appeared in the reign of Chia-ching (嘉靖) of the same dynasty, and nearly a century after the above edition. The author of this commentary was Chu-Chʽen-hung (朱宸洪), a relative of the royal family, and a military viceroy with full powers for some time. His notes are short and not of great utility, but he occasionally introduces quotations from early writers illustrative of passages in Lao-tzŭ’s teachings, and he seems to have been a man of no mean literary attainments.