By Liu Yi-ren. 6"x 9", 190 pages, paperback. A Qing dynasty primer on the study and practice of Chinese Medicine. Much of this book was originally written in verse as a mnemonic device. It was meant to be memorized, not just read! It is required reading by many Chinese medical students in China today. The author advocated the use of only a small repertoire of formulas which are then modified to fit a large number of situations.