Volume 1

○ Category of Calendrical Systems


Origins of Calendrical Methods	Diagram of Pitch-Pipes and Hexagram Correspondences A system linking musical pitches (lülü) with the Eight Trigrams of the I Ching to explain the harmony between sound and the cosmos.	Diagram of the Seventy-Two Pentads The 72 "hou," or five-day micro-seasons, that describe natural phenomena throughout the year.	Dimensions and Scales of Clepsydras A clepsydra is a water clock used for precise timekeeping.	Mnemonics for Determining the Hour of the Tiger The "Yin" hour, roughly 3:00 AM to 5:00 AM, traditionally considered the start of the civil day.	Divination of the Four Seasons
Generation and Correspondence of Musical Pitches	Diagram of Standards for Pitch, Length, Volume, and Weight	The Origins of the Solar Terms and Climate	Diagram of the Ancient Lotus-Style Clepsydra	Diagram of the Variations in Day and Night Lengths	Miscellaneous Divination for Clear and Rainy Skies
Nomenclature and Numerology of the Calendar	Diagram of the Twenty-Four Solar Terms	Methods for Establishing Leap Months	Diagram of the Contemporary Lotus-Style Clepsydra	Song of the Sixty Pillars of the Sexagenary Cycle The "Ganzhi" system used to name years, days, and hours in a 60-unit cycle.	Miscellaneous Divination for Wind and Thunder


Miscellaneous Records of Yearly Seasons	Records of the New Year's Day Festival	Seasonal Ordinances of the Second Month	Records of the Flower Festival	Records of the Cold Food Festival Hanshi, a festival occurring shortly before Qingming where traditionally no fire was lit.	Records of the Eighth Day Festival Specifically the 8th day of the 4th month, celebrated as the Buddha's Birthday.	Seasonal Ordinances of the Fifth Month
Seasonal Ordinances of the First Month	Records of Human Day Renri, the 7th day of the first lunar month, celebrating the creation of humanity.	Records of the Lantern Festival Shangyuan, the first full moon of the year on the 15th day of the first month.	Seasonal Ordinances of the Third Month	Records of the Tomb-Sweeping Festival Qingming, the time for honoring ancestors at their grave sites.	Records of the Buddha's Bathing Festival	Records of the Dragon Boat Festival Duanwu, held on the 5th day of the 5th month.
Records of the Beginning of Spring	Records of the Two Community Sacrifices She, the Spring and Autumn sacrifices to the local gods of the soil and grain.	Records of the Purification Festival Shangsi, the 3rd day of the 3rd month, associated with ritual cleansing in rivers.	Seasonal Ordinances of the Fourth Month	Records of the Summer Retreat The Buddhist monastic period of intensive meditation during the rainy season.	Records of the Dragon Boat Races