Treatise on Armament Technology, Volume 220

Page 10

This page continues the catalog of "Stem and Branch" days—the 60-day cycle used in ancient China to track time—that are considered lucky for moving an army in specific directions.

1st Day (Wood Rat), 3rd Day (Fire Tiger), 19th Day (Water Horse), 37th Day (Metal Rat), 31st Day (Wood Horse), and Water days.
original: "甲子 丙寅 壬午 庚子 甲午 壬" (Jiazi, Bingyin, Renwu, Gengzi, Jiawu, Ren). These represent specific coordinates in the sexagenary cycle combining Heavenly Stems and Earthly Branches.

9th Day (Water Monkey), 5th Day (Earth Dragon), 7th Day (Metal Dog), and 26th Day (Earth Ox).
original: "壬申 戊辰 庚戌 巳丑" (Renshen, Wuchen, Gengxu, Jichou). The "Snake" (Si) in the OCR likely refers to "Ji," the 6th Heavenly Stem, as "Sichou" is not a standard cycle pair.

3rd Day (Fire Tiger) and 35th Day (Earth Dog).
original: "丙寅 戊戌" (Bingyin, Wuxu).

9th Day (Water Monkey), 57th Day (Metal Monkey), 21st Day (Wood Monkey), 27th Day (Metal Tiger), 31st Day (Wood Horse), 38th Day (Metal Ox), and 39th Day (Water Tiger).
original: "壬申 庚申 甲申 庚寅 甲午 辛丑 壬寅"

The "Establish-Remove" Method for Dispatching the Army

The "Establish-Remove" (Jianchu) system consists of twelve "divine officers" or celestial influences that rotate daily. Each day is assigned a character—such as Establish (Jian), Remove (Chu), Full (Man), or Balance (Ping)—which determines if the day is suitable for military action, weddings, or funerals.