松柏叶露。花露俱同此法。收久不坏。
铁熬盘置灶上。盘内贮砂三寸许。砂上加铜旋一面。将米升许淘透入旋内。合上锡甑。
俟其
（形如烧酒甑而不贮水内腰有槽傍通于滴口米气上腾则露珠流入槽内而出下设子口二层
内子
口子
寸俱
铜旋深五寸许。贮米合锡甑于上。入重汤内大火久煮。亦可取露。竟无焦气。而露较多
于前
朴硝（十斤） 长流水一石煎化。澄去沙土。熬至一半。入盆内露一宿。结成硝去水。
每硝（
五七次九
泥固济。浓
顶火（十五斤）
生甘末（一两）炙甘
以提净芒硝。置风日中。消尽水气。自成轻飘白粉。 又法以粗瓦瓶盛硝。挂当风檐下。
待
朴硝（一斤）打碎老皮西瓜（一个）切去盖。去子留瓤。入硝于内。数日化成水。再以
此水入顶
用点风火时眼
外科收口神药。
黑铅（二两化开投入水银二两听用） 火硝（二两） 绿矾（二两） 白矾（二两）
上三味。共碾为末。炒干。入前黑铅水银拌匀。入阳城罐内。铁盏盖口。盐泥封固。晒
干。
用铅一斤。小罐内炭火煨化。投白砒二两于化烊铅上炼烟尽为度。取起冷定。打开金顶。
砒
用蟾不拘大小。其酥俱有。用阔铜镊镊蟾眉棱高肉上微紧。拔出酥来凝聚镊里。多则刮
下阴
破伤
Pine and cypress leaf dew. Floral dew can also be produced using this method. It does not spoil even after long storage.
Place an iron steaming tray on the stove. Fill the tray with sand to a depth of about three cun. Place a copper steamer (tong xuan) on top of the sand. Wash approximately one sheng of rice thoroughly and place it into the copper steamer. Cover it with a tin retort (xi zeng).
Wait until it
(It resembles a liquor distillation retort but does not hold water inside. Its waist has a groove connected to a drip outlet. When the steam from the rice rises, dew droplets flow into the groove and then exit. Below, there are two layers of inner rims,
inner rim
rim
cun all
The copper steamer is about five cun deep. Fill it with rice and cover it with the tin retort. Place it in a double boiler (chong tang, indirect heating with water) and boil over high heat for a long time. This can also yield dew. It has absolutely no burnt smell, and the amount of dew obtained is greater than the previous (dry steaming) method.
Mirabilitum (puxiao, crude sodium sulfate) (ten jin). Decoct and dissolve it in one dan of flowing water. Let it settle and remove the sand and soil. Boil until the volume is reduced by half. Pour it into a basin and leave it exposed overnight. After the nitrate crystallizes, remove the water.
For each portion of nitrate (
five seven times nine
Seal it tightly with mud.
Top fire (fifteen jin)
Raw Glycyrrhizae Radix et Rhizoma (sheng gancao, licorice root) powder (one liang) and prepared Glycyrrhizae Radix et Rhizoma (zhi gancao, prepared licorice root)
Take purified Natrii Sulfas (mangxiao, refined sodium sulfate). Place it in a windy and sunny location. After the moisture completely evaporates, it naturally turns into light, fluffy white powder. Another method: place the nitrate in a coarse earthenware jar. Hang it under a windy eave.
Wait
Mirabilitum (puxiao) (one jin), crushed. An old-skinned watermelon (one piece). Cut off the top. Remove the seeds, keeping the flesh. Place the nitrate inside the watermelon. After several days, it will dissolve into water. Then use
this water into the top
Used for treating acute conjunctivitis or similar eye inflammations due to wind-fire (feng huo shi yan).
A miraculous medicine for promoting wound healing in external medicine.
Black lead (hei qian, lead) (two liang, melt it and then add two liang of Hydrargyrum (shui yin, mercury), set aside). Saltpeter (huo xiao, potassium nitrate) (two liang). Melanterite (lv fan, ferrous sulfate) (two liang). Alumen (bai fan, alum) (two liang).
Grind the above three ingredients together into powder. Dry-fry them. Mix with the previously prepared lead-mercury mixture. Place into a Yangcheng jar. Cover the mouth with an iron cup. Seal it firmly with salt mud. Sun-dry
it.
Use one jin of lead. Melt it with charcoal fire in a small jar. Add two liang of Arsenicum Album (bai pi, white arsenic) onto the melted lead liquid. Process until the arsenic fumes are completely exhausted. Remove and let it cool. Open it to obtain the "golden crown" (a type of medicinal pellet).
Arsenic
Use toads (chan chu), regardless of size, all have toad venom (chan su). Use a wide-mouthed copper tweezer to clamp the raised flesh on the toad's brow ridge, applying slight pressure. Extract the toad venom, which coagulates inside the tweezer. If a large amount is obtained, scrape
it off, and dry
it in the shade. Used for treating tetanus (po shang feng).