Yì shì tōng biàn 易筮通變

Penetrating the Transformations of the Yì by Milfoil-Divination

by 雷思齊 (Léi Sīqí) — SòngYuán scholar, “Kōng shān xiān sheng”

Léi Sīqí’s three-juàn treatise on milfoil-divination of the Yì. Preserved as DZ 1011 / CT 1011 (Tài xuán bù 太玄部).

Dating. SòngYuán. Dynasty: 宋-元.