ABSTRACT
It is not at all difficult to support the foregoing paragraph with textual evidence. In the Kuan Tzu7 book there is a chapter on water and the earth, probably written about the late - 4th century during the Warring States period. f At the beginning of this we read:g
a This is often described, as by Sun Chin-Chhing (1). The essential references are NCLS, ch. 12, (p. 21), NCLS/MC' (pp. 1047ff.), NCLS/PH (pp. 155 ff., with a table of the correlations on p. 162). The text compares in parable form (yii IO ) the characteristics of the tracts with those of the rivers in terms of size, deepness, width and distance, relating thereto the proper depth of insertion of the needle and the time it ought to be left in place.
