Names of the authors who belong to this period, B.C. 600 to B.C. 200, and of the works on a variety of subjects attributed to them, would fill a long list. Many of the latter have disappeared, and others are gross forgeries, chiefly of the first and second centuries of our era, an epoch which, curiously enough, is remarkable for a similar wave of forgery on the other side of the world. As to the authors, it will be seen later on that the Chinese even went so far as to create some of these for antiquity and then write up treatises to match. There was SUN TZŬ of the 6th century B.C. He is said to have written the _Ping Fa_, or Art of War, in thirteen sections, whereby hangs a strange tale. When he was discoursing one day with Prince Ho-lu of the Wu State, the latter said, “I have read your book and want to know if you could apply its principles to women.” Sun Tzŭ replied in the affirmative, whereupon the Prince took 180 girls out of his harem and bade Sun Tzŭ deal with them as with troops. Accordingly he divided them into two companies, and at the head of each placed a favourite concubine of the Prince. But when the drums sounded for drill to begin, all the girls burst out laughing. Thereupon Sun Tzŭ, without a moment’s delay, caused the two concubines in command to be beheaded. This at once restored order, and ultimately the corps was raised to a state of great efficiency. The following is an extract from the Art of War:-- “If soldiers are not carefully chosen and well drilled to obey, their movements will be irregular. They will not act in concert. They will miss success for want of unanimity. Their retreat will be disorderly, one half fighting while the other is running away. They will not respond to the call of the gong and drum. One hundred such as these will not hold their own against ten well-drilled men. “If their arms are not good, the soldiers might as well have none. If the cuirass is not stout and close set, the breast might as well be bare. Bows that will not carry are no more use at long distances than swords and spears. Bad marksmen might as well have no arrows. Even good marksmen, unless able to make their arrows pierce, might as well shoot with headless shafts. These are the oversights of incompetent generals. Five such soldiers are no match for one.” It is notwithstanding very doubtful if we have any genuine remains of either Sun Tzŭ, or of Kuan Tzŭ, Wu Tzŭ, Wên Tzŭ, and several other early writers on war, political philosophy, and cognate subjects. The same remark applies equally to Chinese medical literature, the bulk of which is enormous, some of it nominally dating back to legendary times, but always failing to stand the application of the simplest test. * * * * *