是胡桐树脂。一名胡桐律。律即沥。犹松脂谓沥青之义。出肃州以西平泽川谷中。
以西亦有之。脂沦入土。若矾石硝石之类。冬月采之。有二种。木泪即木律。状如膏油
树脂流出者。石泪即石律。乃脂入土石间。成块如片者。以其得斥卤之气。故入药惟用
咸苦大寒。气味俱浓。阴中之阴。入足阴明经。主治湿热齿痛。风虫牙痛。疳 。骨槽
风劳
治一女
牙疳。
用五钱
〔论〕 胡桐泪极西所产。其木本风升。而受气于清凉。其汁入土。更酿咸苦。是展转
受气
入
类
以
也
〔辨治〕 形如小石片子。黄土色者为上。
一名枫香脂。其树霜后叶丹。南方及关陕甚多。二月花实如卵。至八九月熟时
烧。其脂为白胶香。五月斫为坎。十一月采之。
气味辛苦平。主治吐衄咯血。活血生肌止痛。其性疏通。治一切痈疽疮疥金疮。烧过揩
牙。
治筋
皆
丸治
为化
为外
为
一
〔论〕 枫脂味辛。金也。又苦。火也。而气之平者。亦金也。其叶霜后色丹。金为火
用也
因所
之上
之化也。致火于水。则仲冬所采之香脂。真为人身化血之神机。并活血之善物矣
久泻。腹痛无休。有南白胶香散。用御米壳为君。龙骨胶香为臣。而甘草炮姜佐
阴之化以为阳之守者乎。而岂止以活血为功乎。
〔辨治〕 与松脂皆可乱乳香。但枫香微白黄色。烧之可见真伪。以齑水煮二十沸。入
冷水
这是胡桐树脂。又名胡桐律。“律”即“沥”，就像松脂被称为沥青的意思一样。产于肃州以西的平泽川谷中。
西方也有出产。树脂渗入泥土，如同矾石、硝石之类。冬季采集。有两种：木泪即木律，状如膏油，是树脂流出者；石泪即石律，是树脂渗入土石之间，凝结成块如片状者。因为它吸收了盐碱地之气，所以入药只使用其咸、苦、大寒的特性。气味都非常浓厚，属于阴中之阴。归足阳明经。主治湿热引起的齿痛、风虫牙痛、疳积（小儿慢性营养不良性疾病）、骨槽风（颌骨骨髓炎）等症。
曾治一女患牙疳（牙龈溃烂坏死），用五钱。
〔论〕 胡桐泪极产于西部。其树木本性随风上升，而受气于清凉之处。其汁液渗入土中，更酿造成咸苦之味，这是辗转受气的过程。
〔辨治〕 形状像小石块片子的，呈黄土色的为上乘。
又名枫香脂。这种树在霜降后叶子变红。南方及关陕地区非常多。二月开花结果，果实如卵形。到八九月成熟时烧取。其树脂称为白胶香。五月砍开树干形成凹槽，十一月采集。
气味辛、苦、平。主治吐血、衄血（鼻出血）、咯血。能活血、生肌、止痛。其性质疏通，治疗一切痈疽疮疥、金疮（金属利器造成的创伤）。烧过后用来擦牙。
治疗筋……（原文此处有缺漏或排版错误，语意不全）
皆……丸治……为化……为外……为……一……（原文此处有缺漏或排版错误，语意不全）
〔论〕 枫脂味辛，属金。又味苦，属火。而其气平和，也属金。它的叶子在霜降后颜色变红，这是金被火用的表现。因所……之上……之化也。将火引入水中，那么仲冬（农历十一月）所采集的香脂，真是人体化生血液的神机，也是活血的良药。
久泻，腹痛不止。有南白胶香散，以御米壳（罂粟壳）为君药，龙骨、胶香为臣药，甘草、炮姜为佐药。这是以阴之化作为阳之守吗？难道仅仅只是发挥活血的功效吗？
This is the resin of *Haloxylon ammodendron* (Hu Tong Lei). Also known as Hu Tong Lv. "Lv" means "Li" (dripping/exudate), similar to how pine resin is referred to as asphalt. It is produced in the valleys and flat plains west of Suzhou.
It is also found in the western regions. The resin seeps into the soil, resembling alum or saltpeter. It is harvested in winter. There are two types: "Mu Lei" (Wood Weep) or "Mu Lv," which resembles paste or oil and is the exuded resin; and "Shi Lei" (Stone Weep) or "Shi Lv," which is resin that has penetrated between rocks and soil, forming blocks like flakes. Because it absorbs the qi of saline-alkali land, only its salty, bitter, and very cold properties are used in medicine. Its flavor and aroma are both strong, belonging to yin within yin. It enters the Foot Yangming Meridian. It mainly treats toothache caused by damp-heat, toothache due to wind-worms, gan disease (pediatric malnutrition syndrome), and gucao feng (osteomyelitis of the jaw).
A case was treated for a female patient suffering from ya gang (necrotizing gingivostomatitis), using five qian.
[Discussion] Hu Tong Lei is produced in extreme western regions. The tree's nature rises with the wind, yet it receives qi from cool and clear sources. Its sap seeps into the earth, further fermenting into salty and bitter flavors; this is the process of receiving qi through transformation.
[Differentiation and Treatment] Those shaped like small stone flakes and having a yellow-earth color are considered superior.
Also known as Feng Xiang Zhi (Liquidambar Resin). The leaves of this tree turn red after frost. It is abundant in the southern regions and Guan-Shaanxi areas. Flowers and fruits appear in February, resembling eggs. When ripe in August or September, they are burned to extract the resin, called Bai Jiao Xiang (White Glue Fragrance). Cuts are made in the bark in May to form channels, and harvesting occurs in November.
Its flavor is pungent, bitter, and neutral. It mainly treats hematemesis (vomiting blood), epistaxis (nosebleed), and hemoptysis (coughing up blood). It invigorates blood, generates flesh, and relieves pain. Its nature is unblocking and circulating. It treats all kinds of carbuncles, ulcers, sores, scabies, and traumatic injuries from metal weapons. After burning, it can be used to rub the teeth.
Treats tendons... [Text fragment/missing content]
All... pill treatment... for dissolution... for external use... for... one... [Text fragment/missing content]
[Discussion] Feng Zhi is pungent, corresponding to Metal. It is also bitter, corresponding to Fire. However, its neutral nature also corresponds to Metal. The leaves turning red after frost indicates Metal being utilized by Fire. Due to the transformation upon... [Text fragment]. Introducing fire into water, the resin harvested in mid-winter (the eleventh lunar month) is truly the divine mechanism for generating blood in the human body and an excellent substance for invigorating blood.
For chronic diarrhea and incessant abdominal pain, there is Nan Bai Jiao Xiang San (Southern White Glue Fragrance Powder), using Yu Mi Ke (Pericarpium Papaveris / Poppy Shell) as the sovereign herb, Long Gu (Fossilized Bones) and Jiao Xiang as minister herbs, and Gan Cao (Licorice Root) and Pao Jiang (Prepared Ginger) as assistant herbs. Is this using the transformation of yin to guard yang? Does it not go beyond merely invigorating blood?
[Differentiation and Treatment] Both Song Zhi (Pine Resin) and this resin can confuse Ru Xiang (Olibanum). However, Feng Xiang is slightly white-yellow in color, and burning it can reveal authenticity. Boil in vinegar solution for twenty boils, then add cold water... [Text cut off]