人身一十二经，气血阴阳攸分，按经点痘，独点少阳三焦经者何？《备要》云∶少阳主
气，诸药入胆经气分者，并入三焦，惟点两臂三穴，盖取配合上、中、下三焦，其理最妙。
《内经》曰∶上焦如雾，气之源也。点消烁，上配膻中。中焦如沤，血之源也。点冷渊，中
配胃脘。下焦如渎，水之源也。点四渎，下配丹田。丹田，即命门也。总之，不离乎三焦者
是。故《易》曰∶仰观于天，其星辰之奠丽，不如凡几，而其要则以七宿为经，二十四曜为
纬。俯察于地，其山川之流峙，又不如凡几，而其要则以五岳为宗，四渎为委。天地且然，
人身何独不然。细考其法甚善，理的无疑，洵保万全之良方也！毋庸予赘。
人身背脊十四椎下，名为命门，为督脉之穴。前与脐对，脐下丹田，为三焦之募穴，分
与命门相表里。命门为生气之门，出而治脐，下分三歧，上冲夹脐，过天枢，上至膻中两乳
间，元气所系焉。三焦有脏无腑，上焦在胃上口，治在膻中。中焦在胃管，治在脐旁。下焦
在脐下，膀胱上口，治在脐。三焦、命门，原一气相贯通者也。故《经》曰∶元气者，三焦
之使。李濒湖曰∶三焦即命门之用。王海藏曰∶三焦命门为一府，其脉同诊。以是观之，三
焦、命门，真相须而为用者也。点痘家，故点自三焦之穴，其初藉三焦而引入命门，其后由
命门而转达三焦，理确而当，法奇而便，若审穴的实，则较稳吹苗家万万矣。大清道光十七
年，岁次丁酉，夏四月，醴陵图南子识。
按∶是书所称，引种万人，并无再出天花之患，固非虚语。然近亦间或千人中有一复出
者，吹苗家即肆诋毁，谓其术不足凭，婴儿父母，虽明知牛痘甚便，犹未敢以轻试也。抑知
千中间或有一复出者，其弊非由于立法之不密，实由于奉行之不善，以迩来业牛痘者，粗心
浮气，偶尔刺穴稍偏，致胎毒未能出尽，后又不为之再引所误也。近得复引一法，最为稳妥
，凡小儿引痘一次后，或逾数月，或至下年复引一次，如仍上浆结痂者，尚须再引，总以传
浆后，越三宿而刺处微见红盘，再过二三日而红盘自退，并不起顶上浆者，为胎毒已尽之证
。此后，虽遇自行天花，永不沾染矣。
人体共有十二经脉，气血阴阳各有归属。为什么在按经络选取穴位进行种痘时，唯独要点选少阳三焦经的穴位？《备要》记载：少阳主司气机运行，凡是药物进入胆经气分的，都会并入三焦经。因此只点选双臂上的三个穴位，这是为了配合上、中、下三焦，其中的道理非常精妙。
《黄帝内经》说：上焦像雾露一样弥漫，是气的源头。点选“消烁”穴（此处指代特定穴位，原文可能为冷渊或类似音近字，依下文对应），在上部配合膻中穴。中焦像沤渍发酵一样，是血的源头。点选“冷渊”穴，在中部配合胃脘部位。下焦像沟渠排水一样，是水的源头。点选“四渎”穴，在下部配合丹田。丹田，就是命门。总之，不离乎三焦的道理是正确的。所以《易经》说：仰观天空，星辰的分布繁多不可胜数，但其关键是以七宿作为经线，以二十四曜作为纬线。俯察大地，山川的流动与耸立也繁多不可胜数，但其核心是以五岳为宗主，以四渎为支流。天地尚且如此，人身又怎能例外呢？仔细考察这种方法非常完善，道理确凿无疑，确实是保证万全的良好方法！我不必再多说什么了。
人体背部第十四椎骨下方，名为命门，是督脉上的穴位。它前方与肚脐相对，肚脐下方的丹田，是三焦经的募穴，分别与命门互为表里。命门是生气的大门，元气由此发出并治理肚脐区域，向下分为三条分支，向上冲过肚脐两侧，经过天枢穴，上行至两乳之间的膻中穴，元气就系结于此。三焦有脏的功能而无腑的形态，上焦位于胃的上口，治疗部位在膻中；中焦位于胃管，治疗部位在脐旁；下焦位于脐下膀胱的上口，治疗部位在脐部。三焦和命门，原本是一气贯通的。所以《内经》说：元气，是三焦的使者。李濒湖说：三焦就是命门的作用。王海藏说：三焦和命门是一个府，它们的脉象可以同诊。由此看来，三焦和命门，是相互依赖才能发挥作用的。种痘的人，所以从三焦的穴位开始点种，起初借助三焦将痘毒引入命门，随后由命门再转达至三焦，道理确实恰当，方法奇特而便利。如果审察穴位准确无误，那就比传统的“稳吹苗”家法安全万倍了。大清道光十七年，岁次丁酉，夏季四月，醴陵图南子记述。
按语：这本书所称引种的万人，并没有再次患天花的祸患，这确实不是虚言。然而近来偶尔也有千人中出现一例复发的情况，“稳吹苗”家便大肆诋毁，说这种方法不足信赖。婴儿的父母们，虽然明知牛痘非常方便，却不敢轻易尝试。他们哪里知道，千人中偶尔有一例复发，弊端不在于立法不严密，实在在于执行得不好。因为近来从事牛痘接种的人，粗心浮躁，偶尔刺穴稍微偏斜，导致胎毒未能完全排出，后来又不进行再次引导，从而造成了失误。最近得到一种再次引导的方法，最为稳妥。凡是小儿第一次引种后，或者过了几个月，或者到了第二年再次引种一次。如果仍然上浆结痂的，还需要再引种。总之以传浆之后，过了三天刺处微微出现红盘，再过两三天红盘自然消退，并且不起顶、不上浆的，才是胎毒已尽的证明。此后，即使遇到自行爆发的天花，也永远不会被传染了。
The human body has twelve meridians, with Qi and Blood, Yin and Yang distinctly distributed. Why is it that when selecting acupoints according to meridians for variolation, only the Shaoyang Sanjiao Meridian (Triple Burner Meridian) points are selected? *Bei Yao* states: Shaoyang governs Qi; any medicine entering the Gallbladder Meridian's Qi aspect merges into the Sanjiao. Therefore, only three points on both arms are selected, aiming to coordinate with the Upper, Middle, and Lower Sanjiao. The rationale is most exquisite.
*Huangdi Neijing* says: The Upper Sanjiao is like mist or dew; it is the source of Qi. Selecting [Xiaoshuo] (likely referring to a specific point contextually linked here, possibly Cold Abyss/Lengyuan based on later text) coordinates with Tanzhong (CV17) in the upper region. The Middle Sanjiao is like fermentation; it is the source of Blood. Selecting Lengyuan (SI11) coordinates with the Epigastrium in the middle region. The Lower Sanjiao is like a ditch; it is the source of Water. Selecting Sidu (TE13) coordinates with Dantian (Elixir Field) in the lower region. Dantian is essentially Mingmen (Gate of Life). In summary, this does not depart from the principles of the Sanjiao. Thus, *Yijing* says: Looking up at the sky, the arrangement of stars is countless, but its essence lies in seven mansions as meridians and twenty-four luminaries as latitudes. Looking down at the earth, the flow and elevation of mountains and rivers are also countless, but its core lies in Five Sacred Mountains as masters and Four Great Rivers as tributaries. If Heaven and Earth are thus, how much more so the human body? Carefully examining this method reveals it to be very sound, with undeniable logic. It is indeed an excellent prescription ensuring absolute safety. I need not add further words.
Below the fourteenth thoracic vertebra on the back is Mingmen, an acupoint of the Du Mai (Governing Vessel). Anteriorly opposite the navel, the Dantian below the navel is the Front-Mu point of the Sanjiao, forming an interior-exterior relationship with Mingmen. Mingmen is the gate of generating Qi. Qi emerges to govern the area around the navel, dividing downward into three branches, rushing upward past the navel, passing Tianshu (ST25), reaching up to Tanzhong between the two breasts, where Yuan Qi (Primal Qi) is anchored. The Sanjiao has the function of a Zang organ but lacks the form of a Fu organ. The Upper Sanjiao is located at the upper opening of the stomach, governed at Tanzhong. The Middle Sanjiao is located at the stomach tube, governed beside the navel. The Lower Sanjiao is located below the navel at the upper opening of the Bladder, governed at the navel. The Sanjiao and Mingmen are originally connected by one Qi. Thus, *Jing* says: Yuan Qi is the envoy of the Sanjiao. Li Binhu said: The Sanjiao is the function of Mingmen. Wang Haicang said: The Sanjiao and Mingmen constitute one Fu, and their pulses can be diagnosed together. From this perspective, the Sanjiao and Mingmen rely on each other to function. Variolators therefore start with the Sanjiao points, initially using the Sanjiao to introduce the variola virus into Mingmen, and subsequently transmitting it from Mingmen back to the Sanjiao. The logic is accurate and appropriate, the method unique yet convenient. If the acupoints are accurately identified, it is ten thousand times safer than the "Steady Blowing Seed" method. Recorded by Tunanzi of Liling in the fourth month of summer, Dingyou year, 17th year of Daoguang reign of Qing Dynasty.
Note: The book claims that among ten thousand people inoculated, none suffered smallpox again, which is indeed not false talk. However, recently, occasionally one case out of a thousand has recurred. Proponents of the "Steady Blowing Seed" method slanderously claim this technique is unreliable. Parents of infants, although knowing cowpox vaccination is very convenient, dare not try it lightly. They do not realize that the occasional recurrence in one out of a thousand cases is not due to imprecise legislation/methodology, but rather poor execution. Recently, practitioners of cowpox have been careless and superficial; occasionally deviating slightly during puncture causes fetal toxins not to be fully expelled, and subsequent failure to re-introduce the vaccine leads to error. I have recently obtained a re-introduction method that is most secure. For children who have undergone initial inoculation, if months pass or until the next year, a second inoculation is performed. If pustules still form and scab over, further inoculation is required. Generally, after the formation of pus, if the puncture site shows a slight red disk after three days, and this red disk fades naturally after two or three more days, without rising to the top or forming pus, this proves that fetal toxins are exhausted. Thereafter, even if natural smallpox occurs, infection will never happen.