C15 Chinese medical textbook, Foreword

Yifang jilun (Collected Theories of Prescribing), by Yu Chaoyan (Ming period, 1368-1644), publ. 1493 (6th year of the Hongzhi reign period of the Ming dynasty, Gui Chou year), Foreword, first page/half-folio.

The Foreword, by Ye Yueyi (Ming period, 1368-1644), extolls the virtues of this text, which is described as a handbook for students of medicine.