味甘，平。主五脏百病。柔筋强骨，安魂魄，长肌肉，益气，久服耐寒暑（《御览》引
耐字多作能，古通），不饥渴，不老神仙。人临死服五斤，死三年，色不变。一名玉札（《御
览》引作玉浓。《初学记》引云，玉桃，服之长生不死。《御览》又引云∶玉桃，服之长生不
死。若不得早服之，临死日服之，其尸毕天地不朽，则杜疑当作桃）。生山
《吴普》曰∶玉泉，一名玉屑，神农、岐伯、雷公∶甘；李氏∶平。畏冬华，恶青竹
（《御览》）。白玉杜如白头公（同上。《事类赋》引云∶白玉体如白首翁）。
案∶《周礼》∶玉府、王斋，则供食玉。郑云∶玉是阳精之纯者，食之以御水气。郑
司农云∶王斋，当食玉屑。《抱朴子·仙药篇》云∶玉，可以乌米酒及地榆酒化之为水，亦
可以葱浆消之为 ，亦可饵以为丸，亦可烧以为粉，服之，一年以上，入水不沾，入火
，刃之不伤，百毒不犯也。不可用已成之器，伤人无益，当得璞玉，乃可用也。得于阗国白
玉，尤善。其次，有南阳徐善亭部界界中玉，及日南卢容水中玉，亦佳。
味甘，温。主咳逆上气，明目益精，安五脏，通百节，利九窍，下乳汁（《御览》引云∶
一名留公乳。《大观本》作一名公乳。黑字）。生山谷。
《吴普》曰∶钟乳，一名虚中。神农∶辛；桐君、黄帝、医和∶甘；扁鹊∶甘，无毒（
《御览》引云∶李氏，大寒）。生山谷（《御览》引云∶太山山谷），阴处岸下，溜汁成（《御
览》引作溜汁所成聚），如乳汁，黄白色，空中相通，二月、三月采，阴干（凡《吴普本草》
，掌禹锡所引者，不复注，惟注其出《御览》诸书者）。
《名医》曰∶一名公乳，一名芦石，一名夏石。生少室及太山，采无时。
案∶《范子计然》云∶石钟乳，出武都，黄白者，善（凡引《计然》，多出《艺文类聚
》、《文选注》、《御览》及《大观本草》）。《列仙传》云∶ 疏，煮石髓而服之，谓之石钟乳，
钟，当为潼。说云∶乳汁也；钟，假音字。
Taste is sweet, nature is neutral. It primarily treats various diseases of the five Zang organs. It softens tendons and strengthens bones, calms the Hun and Po spirits, promotes muscle growth, supplements Qi, and long-term consumption enables one to withstand cold and heat (The *Taiping Yulan* cites "endure" as often written as "can", interchangeable in ancient texts), preventing hunger and thirst, delaying aging, making one like an immortal. If taken five jin before death, the body remains unchanged in color for three years after death. Also known as Yu Zha (Jade Tally) (*Taiping Yulan* cites as "Yu Nong". *Chuxue Ji* cites: "Jade Peach, consuming it grants immortality." *Taiping Yulan* again cites: "Jade Peach, consuming it grants immortality." If not taken early, taking it on the day of death ensures the corpse remains intact until heaven and earth perish; thus Du Yu's annotation should likely be "Peach"). Grows in mountains.
Wu Pu states: Yu Quan, also known as Yu Xie (Jade Dust). Shennong, Qibo, and Leigong consider its taste sweet; Li Si considers its nature neutral. It fears Dong Hua and dislikes Qing Zhu (Green Bamboo) (*Taiping Yulan*). White Jade resembles a white-headed old man (ibid. *Shilei Fu* cites: "White Jade's texture is like a white-haired elder").
Commentary: The *Rites of Zhou* records: The Office of Jade and the King's fasting provisions supply edible jade. Zheng Xuan annotates: Jade is the pure essence of Yang Qi; consuming it repels dampness. Zheng Sinong states: For the King's fasting, powdered jade should be consumed. *Baopuzi · Chapter on Immortal Drugs* states: Jade can be dissolved into water using black rice wine or Sanguisorba officinalis wine, or dissolved into paste using green onion juice. It can also be ground into pills, or calcined into powder. After more than one year of consumption, one does not get wet in water, is unburned by fire, unharmed by blades, and immune to all poisons. Do not use already crafted jade vessels, as they are harmful and useless; one must obtain raw, uncarved jade (Pu Yu) for use. White jade from Khotan is especially good. Next best are jade from the Xu Shanting area in Nanyang, and jade from Lu Rong waters in Rinan, which are also excellent.
Taste is sweet, nature is warm. It primarily treats cough with rebellious Qi, brightens the eyes and benefits Jing (Essence), calms the five Zang organs, unblocks joints, benefits the nine orifices, and promotes lactation (*Taiping Yulan* cites: Also known as Liu Gong Ru. *Daguan Bencao* writes: Also known as Gong Ru. Black character). Grows in valleys.
Wu Pu states: Zhong Ru (Stalactite), also known as Xu Zhong. Shennong considers its taste pungent; Tong Jun, Huangdi, and Yi He consider its taste sweet; Bian Que considers its taste sweet and non-toxic (*Taiping Yulan* cites: Li Si considers it extremely cold). Grows in valleys (*Taiping Yulan* cites: Tai Mountain valleys), in shady places under riverbanks, formed from dripping fluids (*Taiping Yulan* cites as "formed from accumulated drips"), resembling milk, yellowish-white, internally hollow and connected. Harvested in February and March, dried in shade (For citations from *Wu Pu Bencao* by Zhang Yuxi, no further notes are added; only those cited from *Taiping Yulan* etc. are noted).
Famous Physicians' Record states: Also known as Gong Ru, Lu Shi, Xia Shi. Grows at Mount Shaoshi and Mount Tai, harvestable at any time.
Commentary: *Fanzi Jiran* states: Shi Zhong Ru (Stone Stalactite) originates from Wudu; yellowish-white ones are superior (Citations of *Jiran* mostly come from *Yiwen Leiju*, *Wenxuan Zhu*, *Taiping Yulan*, and *Daguan Bencao*). *Lie Xian Zhuan* states: Chi Songzi boiled stone marrow and consumed it, calling it Shi Zhong Ru. The character "Zhong" should be read as "Tong". Explanation: Ru means milk; Zhong is a phonetic loan character.