（别录上品）
【气味】苦辛，微温，无毒。
【主治】主风水毒肿，去恶气伏尸，瘾疹痒毒。乳香同功。
【核】曰∶熏陆香，西出天竺，南出波斯等国。生沙碛中，树类古松，叶类棠梨。盛夏
脂溢皮表，并皮鳞甲剥之为熏陆；溢脂之处垂滴乳头为乳香；斫凿其树，脂流成块为拣香；
用瓶接贮为瓶香；淋沥根底，杂砂石为乳塌；色黑为黑塌；水浸色败气变为水湿塌；斫削杂
屑为杂末；播扬成尘为缠末。熏陆一种，近不易得，得原采垂滴乳头，圆明润泽者为贵。故
内典谓之天泽香，言其温润丽泽也。天竺国者色黄白，波斯国者色紫赤。日久者溢脂重叠，
累累然，不成乳头者，即拣香也。修事，置缯囊内，挂窗隙良久，取研则不粘易碾；或
同酒研如泥，水飞晒干；或糯米数粒，或灯心草数茎，或人指爪甲二三片，并研之亦易细。
【 】曰∶火烟上出日熏；四时日月经行之地曰陆。合生成功用，命名熏陆。顾盛夏脂
溢皮表，效机衡之夏日在肤，泛泛乎若万物之有余，所爱在外也。故主逆机衡之自下而上，
从内而外，致交通不表，恶气不发，风雨不节，菀槁不荣者。仍使与万物顺浮沉于生长之门，
功用
（别录上品）
【气味】苦，微寒，无毒。
【主治】主妇人产难，研末少许，新汲水服立下。
【核】曰∶龙脑香，取俗称冰片、梅花脑。出婆律、抹罗短叱诸国，南海深山穷谷亦有
之。树名波律，又名固不婆律。高七八丈，大六七围，如积年杉木状，但旁挺劲枝，叶正圆，
面青背白，作花结实，外皮甲错，仁粒如缩砂 者其木肥。肥者生脂为婆律膏，断其树，脂
流根下，截其上，脂溢木端，其枝干未经损动则有，否则气泄无之矣。无花实者其木瘦，瘦
者生香为龙脑香。多历年岁者，风清月朗，或喷香若霏雪，缤纷木上，先其时，布帛树底，
惊之令堕，形如蜂蝶，此属无上乘。顷则仍吸香入木理，不易得也。断其树，湿时无香，干
之循理而析，状类云母，莹若冰霜，或解木作板，香溢缝间。劈而取之，大者成片如花瓣，
小者成粒，为米脑，为速脑，为瑞脑，为金脚脑，为苍龙脑。因其形色以名，总不及成片者
气全力备也。湿者为脑油，清者为脑浆。南唐保大中，贡龙脑浆，贮之缣囊，悬琉璃瓶内，
少顷滴沥成水，香气馥烈，大有益也。近时多用火 成片，更以樟脑、升打乱之，不可不辨。
收贮，烧杉木炭合养之，或糯米炭、相思子，并贮之则不耗。修事，入旧瓷钵，轻展徐研，
务令尘细。展急则捶钵生热，便随香窜耗，欲藉透肌走窍，用平底小铛，以青布剪如底式
，一面喷润净水，拈贴铛底，置龙脑于布上，覆以碗，碗沿外余布数分，水搅麦面，固济
碗布周沿，毋使气泄，隔铛底寸许，燃烧文火，候麦面色熟，略觉焦黄，即便住火，候冷
开视。火法合宜，龙脑尽升碗上，轻盈洁白，香馥百倍于昔。
先人云∶宋史熙宁九年，英州雷震，一山梓木尽枯，中皆化为龙脑，树王震绝，尚有遗馨。
【 】曰∶时乘御天曰龙，首出庶物曰脑。故资胚胎之首出，迅速立下，唐本诸家，陈
列证形，亦属失于飞潜惕跃之宜，安望黄中通理，应地无疆者哉。多服立殂者，盈不可久也。
知
（《名医别录》列为上品）
【气味】味苦、辛，性微温，无毒。
【主治】主治风水引起的毒肿，去除恶气和潜伏在体内的死尸邪气（指久治不愈的沉疴或鬼疰），以及瘾疹瘙痒毒素。乳香的功效与之相同。
【核证】曰：熏陆香，产自西边的天竺国，南边的波斯等国。生长在沙石荒漠中，树木像古老的松树，叶子像棠梨树。盛夏时节，树脂从树皮表面渗出，连同树皮鳞片一起剥落下来的称为“熏陆”；从渗出树脂的地方垂滴下来呈乳头状的称为“乳香”；砍凿树木，树脂流淌凝结成块的称为“拣香”；用瓶子承接储存的称为“瓶香”；淋沥到根部，混杂砂石的是“乳塌”；颜色黑的是“黑塌”；用水浸泡后颜色变坏、气味改变的是“水湿塌”；砍削下来的混杂碎屑的是“杂末”；簸扬成的粉尘是“缠末”。熏陆这一种，近来不容易得到，如果能得到原本采集时垂滴下来的、形状圆满圆润、光泽润泽的乳头状乳香，最为珍贵。所以佛经中称之为“天泽香”，是说它温润而有光泽。天竺国产的颜色黄白，波斯国产的颜色紫赤。存放日久者，树脂层层重叠，累累相连，不成乳头形状的，就是拣香了。炮制加工时，将其放入丝绸袋内，挂在窗户缝隙处很久，取出研磨就不会粘连且容易碾碎；或者同酒一起研磨成泥状，用水飞法处理后晒干；或者加入几粒糯米，或几茎灯心草，或两三片人指甲，一起研磨也容易细腻。
【按语】曰：火烟向上冒出叫“熏”；四方日月运行经过的地方叫“陆”。结合其生成和功用，命名为熏陆。然而盛夏时节树脂溢出皮表，效法天地机衡在夏日阳气浮于肌肤的现象，泛泛地好像万物有余，所爱慕的是外在的表现。所以主治逆乱天地机衡、由下而上、由内而外，导致内外交通受阻，恶气不能发散，风雨失调，郁结枯槁不能荣养的病证。仍能使人体与万物顺应浮沉于生长之门，发挥其功用。
（《名医别录》列为上品）
【气味】味苦，性微寒，无毒。
【主治】主治妇女难产，研成粉末少许，用刚打来的新井水送服，胎儿即可立刻落下。
【核证】曰：龙脑香，取俗称冰片、梅花脑。产自婆律国、抹罗短叱国等地，南海深山大谷中也有出产。树木名叫波律，又名固不婆律。高七八丈，粗六七围，像多年生的杉木样子，只是旁边挺劲的枝条，叶子正圆形，正面青色背面白色，开花结果，外皮粗糙如鳞甲，果仁颗粒像缩砂仁的树木比较肥壮。肥壮的树木产生树脂成为婆律膏，砍断树木，树脂流到根部，截取上部，树脂溢出木端，如果树枝树干未经受损移动则还有树脂，否则气息泄露就没有了。不开花结果的树木比较瘦弱，瘦弱的树木产生香气成为龙脑香。经历很多年岁的，风清月朗之时，有时喷出的香气像飘落的雪花，纷纷扬扬落在树上，在此之前，在树底铺好布帛，惊动树木使其坠落，形状像蜂蝶，这属于最高等级的上乘品。近来则香气又吸收回木纹中，不容易得到了。砍断树木，潮湿时没有香气，干燥后顺着纹理裂开，形状像云母，晶莹得像冰霜，或者剖开木头做成板材，香气溢出缝隙间。劈开取之，大的成片像花瓣，小的成粒，称为米脑、速脑、瑞脑、金脚脑、苍龙脑。根据其颜色和形状命名，总不如成片的气味充足、功效完备。湿润的叫脑油，清澈的叫脑浆。南唐保大年间，进贡龙脑浆，储存在细绢袋中，悬挂在琉璃瓶内，一会儿就滴沥成水，香气浓郁猛烈，大有益处。近来多用火烧成片，再混入樟脑、升打（一种矿物药）等扰乱真伪，不可不辨别。收藏贮存时，用烧过的杉木炭混合养护，或者用糯米炭、相思子一起贮存，则不会损耗。炮制加工时，放入旧瓷钵中，轻轻展开慢慢研磨，务必使粉尘细腻。展开太快则会捶打瓷钵产生热量，香气就会随着热气流窜挥发掉。想要借助其透肌走窍的特性，使用平底小锅，剪一块青布如锅底大小，一面喷洒润湿的净水，拈起贴在锅底，将龙脑放在布上，上面覆盖碗，碗沿外留出几分寸布，用水搅拌麦面，密封固定碗和布的周边，不让气体泄漏，距离锅底一寸许，燃烧文火，等到麦面色熟，略微觉得焦黄，就立即停止加热，等待冷却后打开查看。火法配合得当，龙脑全部升华到碗上，轻盈洁白，香气比从前浓郁百倍。
先父说：宋朝史书记载熙宁九年，英州发生雷击，一座山的梓树全部枯死，中间都化为了龙脑，树王被雷震死，还有遗留的香气。
【按语】曰：顺应天时驾驭天道叫“龙”，首领超出众多事物叫“脑”。所以资助胚胎发育的首出之气，迅速令其落下。唐代本草诸家，陈列证明形态，也属于失去了对飞潜跃动适宜性的体察，怎能期望达到黄中通理、应地无疆的境界呢？多服用会导致立即死亡，是因为盈满不可久留的道理。知晓……
(Bencao Mingyi Bie Lu, Upper Grade)
[Flavor and Property] Bitter and acrid, slightly warm, non-toxic.
[Indications] Primarily treats toxic swelling caused by wind-water [pathogens], removes foul qi and latent corpse-pathogens [referring to chronic, intractable diseases or ghost-related ailments], and itching toxins from urticaria. Ru Xiang (Frankincense) has the same efficacy.
[Analysis] It is said: Xun Lu Xiang comes from the west, specifically India (Tianzhu), and south, such as Persia. It grows in sandy deserts; the tree resembles ancient pines, and its leaves resemble those of the pear-leaf crabapple. In midsummer, resin overflows on the bark surface. When peeled off together with the bark scales, it is called "Xun Lu"; when dripping down from the overflowing resin spots into nipple shapes, it is called "Ru Xiang" (Frankincense); when chopped from the tree and flowing into blocks, it is called "Jian Xiang" (Selected Incense); when caught in bottles for storage, it is called "Ping Xiang" (Bottle Incense); when dripping to the roots mixed with sand and gravel, it is called "Ru Ta"; when black in color, it is called "Hei Ta"; when soaked in water causing discoloration and odor change, it is called "Shui Shi Ta"; when chopped into mixed fragments, it is called "Za Mo"; when winnowed into dust, it is called "Chan Mo". The variety known as Xun Lu is hard to obtain nowadays. If one can obtain the originally collected, naturally dripping nipple-shaped pieces that are round, smooth, and lustrous, they are considered most precious. Therefore, Buddhist scriptures call it "Tian Ze Xiang" (Heavenly Moisture Incense), indicating its moist and lustrous nature. Those from India are yellowish-white, while those from Persia are purplish-red. Pieces stored for a long time have overlapping resin layers, forming clusters rather than nipples, which are then classified as Jian Xiang. For processing, place it in a silk bag, hang it near a window crevice for a long time, then grind; it will not stick and is easy to crush. Alternatively, grind it with wine into a paste, use the water-calcination method [water flying] and dry it; or add a few grains of glutinous rice, a few stems of Juncus effusus [rush pith], or 2-3 pieces of human fingernails, grinding them together makes it easier to achieve fine powder.
[Commentary] It is said: Fire smoke rising upward is termed "Xun" [smoke/incense]; places where sun and moon traverse the four directions are termed "Lu" [land/continent]. Combining its generation and function, it is named Xun Lu. However, in midsummer, resin overflows on the skin surface, mirroring the mechanism of summer yang floating on the skin, seemingly abundant like all things, loving what is external. Thus, it treats conditions where the natural mechanism is reversed, moving from below to above, from inside to outside, leading to blocked communication between interior and exterior, inability to disperse foul qi, irregularity of wind and rain, and stagnation withering without nourishment. It enables the body to follow the floating and sinking within the gate of growth, thereby exerting its function.
(Bencao Mingyi Bie Lu, Upper Grade)
[Flavor and Property] Bitter, slightly cold, non-toxic.
[Indications] Primarily treats difficult labor in women. Grind into a fine powder, take a small amount, and swallow with fresh well water; the fetus will be delivered immediately.
[Analysis] It is said: Long Nao Xiang [Borneol], commonly known as Bing Pian [Ice Piece] or Mei Hua Nao [Plum Blossom Brain]. It originates from countries such as Bulu [Brunei/Palembang], Moluo Duanchi, etc., and is also found in deep mountains and valleys of the South Sea. The tree is named Bolü, also known as Gu Bu Bulü. It is 7-8 zhang high and 6-7 chi in circumference, resembling aged cedar wood, but with sturdy side branches and perfectly round leaves, green on top and white underneath. It flowers and fruits. Trees with rough, scale-like bark and seeds resembling Amomum villosum [Sand Ginger] are robust. Robust trees produce resin called Polü Gao [Balm of Camphor Tree]; if the tree is cut, resin flows to the root. If the upper part is cut and resin overflows at the branch tips, it exists only if the branches and trunk have not been disturbed; otherwise, the qi leaks and it disappears. Trees without flowers or fruits are thin. Thin trees produce fragrance called Long Nao Xiang. After many years, on clear windy and bright moonlit nights, the fragrance may spray like falling snow, scattering on the tree. Before this happens, spread cloth under the tree, shake the tree to make it fall; the resulting pieces resemble bees or butterflies, which belong to the highest grade. Recently, the fragrance tends to re-absorb into the wood grain, making it hard to obtain. When the tree is cut, it has no fragrance when wet. When dry, it splits along the grain, resembling mica, crystal clear like ice and frost. Or, split the wood into boards, and fragrance overflows from the seams. Splitting and taking it yields large pieces like flower petals or small granules, called Mi Nao, Su Nao, Rui Nao, Jin Jiao Nao, and Cang Long Nao. Named after their color and shape, none compare to the complete pieces in terms of potency and completeness. Wet form is called Nao You [Brain Oil]; clear form is called Nao Jiang [Brain Paste]. During the Bao Da era of Southern Tang, Nao Jiang was offered as tribute, stored in silk bags, and hung in glass bottles. Soon, it dripped into water, with a strong and pungent aroma, offering great benefits. Nowadays, people often melt solid pieces by fire and mix them with樟脑 [Camphor] and Sheng Da [a mineral substance] to confuse authenticity, which must be distinguished. For storage, mix with charcoal from burned cedar, or glutinous rice charcoal, or Acacia confusa seeds, to prevent loss. For processing, put it into an old porcelain mortar, gently spread and slowly grind, ensuring the dust is fine. Grinding too fast heats the mortar, causing the fragrance to volatilize due to heat. To utilize its ability to penetrate muscles and open orifices, use a flat-bottomed small pan. Cut a piece of blue cloth to fit the bottom, sprinkle clean water to moisten one side, press it onto the pan bottom, place the Borneol on the cloth, cover with a bowl, leaving a few fen of cloth extending beyond the bowl's rim. Mix wheat flour with water to seal the junction of the bowl and cloth tightly, preventing gas leakage. Heat gently from about one cun below the pan bottom. Wait until the wheat flour turns cooked and slightly yellow, then stop heating. Wait for it to cool before opening. If the fire method is appropriate, all Borneol sublimes to the top of the bowl, appearing light, white, and a hundred times more fragrant than before.
My late father said: According to Song History, in the 9th year of Xining, lightning struck Yingzhou, causing all catalpa trees on a mountain to wither completely, turning internally into Borneol. The King of Trees was killed by the strike, yet a lingering fragrance remained.
[Commentary] It is said: Riding heaven according to time is called "Long" [Dragon]; emerging as the leader among all things is called "Nao" [Brain]. Thus, it aids the emergence of the primary qi in the embryo, acting swiftly to induce delivery. The various scholars of the Tang Bencao, in displaying symptoms and forms, failed to appreciate the appropriateness of flying, diving, starting, and leaping [dynamic changes of life]. How can they hope to achieve the state of "yellow middle penetrating principles" and "extending boundlessly like the earth"? Excessive consumption leads to immediate death because fullness cannot last long. Knowing...