（《拾遗》）
【释名】方诸水。藏器曰∶方诸，大蚌也。熟摩令热，向月取之，得水二三合，亦如朝
露。阳燧向日，方诸向月，皆能致水火也。《周礼》明诸承水于月，陈馔为玄酒是也。时珍
曰∶明水者，取其清明纯洁，敬之至也。《周礼》∶司 氏，以夫燧取明火于日，鉴取明水于
月，以恭祭祀。魏伯阳《参同契》云∶阳燧以取火，非日不生光；方诸非星月，安能得水浆。
《淮南子》云∶方诸见月，则津而为水。注者或以方诸为石，或以为大蚌，或以为五石炼成，
皆非也。按《考工记》云，铜锡相半，谓之鉴燧之剂，是火为燧、水为鉴也。高堂隆云∶阳
燧一名阳符，取火于日。阴燧一名阴符，取水于月。并以铜作之，谓之水火之镜。此说是矣。
干宝《搜神记》云∶金锡之性，一也。五月丙午日午时铸，为阳燧；十一月壬子日子时铸，
为阴燧。
【气味】甘，寒，无毒。
【主治】明目定心，去小儿烦热，止渴（藏器）。
（《拾遗》）
【释名】时珍曰∶阴盛则露凝为霜，霜能杀物而露能滋物，性随时异也。干象占云∶天
气下降而为露，清风薄之而成霜。霜所以杀万物，消 。当降而不降，当杀物而不杀物，
皆政弛而慢也。不当降而降，不当杀物而杀物，皆政急而残也。许慎《说文》云∶早霜，曰
KT；白霜，曰皑。又有玄霜。承曰∶凡取霜，以鸡羽扫之，瓶中密封阴处，久亦不坏。
【气味】甘，寒，无毒。
【主治】食之解酒热，伤寒鼻塞，酒后诸热面赤者（藏器）。和蚌粉，敷暑月痱疮，及
腋
下赤肿，立瘥（陈承）。
【附方】新一。寒热疟疾（秋后霜一钱半，热酒服之。《集玄方》）
(From *Bencao Shiyi* [Supplement to Materia Medica])
[Names] Fangzhu Water. Chen Zangqi stated: Fangzhu refers to large freshwater mussels. When rubbed thoroughly until warm and held towards the moon, it yields two or three *he* (ancient liquid measure) of water, similar to morning dew. Yangsui (ancient bronze fire mirror) faces the sun, while Fangzhu faces the moon; both can obtain fire and water respectively. The *Rites of Zhou* records using Mingzhu to catch water under the moonlight, presenting it as Xuanjiu (dark wine for sacrifices). Li Shizhen stated: Mingwater is obtained to utilize its clarity and purity, representing the utmost reverence. In the *Rites of Zhou*, the official Si Xuan uses Huisui (fire mirror) to extract bright fire from the sun, and Jian (water mirror) to extract Mingwater from the moon, for solemn sacrifices. Wei Boyang’s *Can Tong Qi* states: Yangsui extracts fire, but without the sun, no light is generated; Fangzhu cannot yield water unless facing stars or the moon. The *Huainanzi* states: When Fangzhu sees the moon, it exudes moisture to become water. Commentators have variously identified Fangzhu as stone, large mussel, or a substance refined from five minerals, all of which are incorrect. According to the *Kaogong Ji* (Artificers' Record), an alloy of equal parts copper and tin is called the material for making mirrors; thus, fire is drawn by Sui (mirror) and water by Jian (mirror). Gao Tanglong stated: Yangsui is also known as Yangfu, extracting fire from the sun. Yinsui is also known as Yinfu, extracting water from the moon. Both are made of copper and referred to as mirrors of water and fire. This explanation is correct. Gan Bao’s *Soushen Ji* (In Search of the Supernatural) states: The nature of gold and tin is identical. Cast at noon on a Bingwu day in May, it becomes Yangsui; cast at midnight on a Renzi day in November, it becomes Yinsui.
[Properties and Flavor] Sweet, cold, non-toxic.
[Indications] Brightens the eyes and calms the heart, clears childhood irritant heat, and relieves thirst (Chen Zangqi).
(From *Bencao Shiyi* [Supplement to Materia Medica])
[Names] Li Shizhen stated: When Yin energy is abundant, dew condenses into frost. Frost can kill living things, whereas dew nourishes them; their properties change with the seasons. The *Ganxiang Zhan* states: Heavenly qi descends to form dew, and clear wind blows to create frost. Frost serves to kill all things and eliminate... If it should descend but does not, or if it should kill things but does not, these indicate lax and negligent governance. If it should not descend but does, or if it should not kill things but does, these indicate harsh and cruel governance. Xu Shen’s *Shuowen Jiezi* states: Early frost is called "Ling"; white frost is called "Ai". There is also Xuanfrost. Chen Cheng stated: To collect frost, sweep it up with chicken feathers, seal it in a bottle, and store it in a cool place; it will not spoil even after a long time.
[Properties and Flavor] Sweet, cold, non-toxic.
[Indications] Consuming it resolves alcohol-induced heat, treats nasal congestion due to Shanghan (Cold Damage), and alleviates post-drinking heat symptoms such as facial redness (Chen Zangqi). Mixed with clam powder and applied topically, it instantly cures prickly heat sores during summer months and red swelling in the axillae (Chen Cheng).
[Attached Prescriptions] New Prescription 1. Chills and fevers malaria: Take one qian half of autumn frost, taken with hot wine (*Jixuan Fang*).