Clavis medica ad Chinarum doctrinam de pulsibus
Clavis medica is a 1686 Nuremberg medical treatise by the Jesuit missionary Michel Boym, setting out Chinese pulse doctrine for European readers. Its copperplate pictures show a standing male figure with Chinese annotations marking pulse points, a pair of nude figures front and back, and a hand diagram with labelled lines, giving designers a clear, schematic diagram style with dense typeset labels.
