Yuan Tiangang, who was concentrating on drinking the soup, was frightened by Li Su's voice, and almost drank the soup into his trachea, and when he used a towel to dry the soup on his beard, he saw Li Su stand up, walk quickly to the wall, reach out and wipe the candle-blackened place on the wall a few times, and then ran back with a surprised face.

"Yuan Daochang, please see, if I remember correctly, adding this thing to the gum should increase the wear resistance of the gum!" Li Su held his black palm and said to Yuan Tiangang very excitedly.

"Oil black?" Yuan Tiangang glanced at Li Yu suspiciously, he knew that this thing could make ink, but he really didn't expect that this thing could be added together with gum.

"That's right, this thing can be called carbon black, don't you add sulfur and other things when you make gums? It's the same with carbon black, but the amount required is relatively large, and I don't know exactly how much, so you can do your own experiments then! Li Su thanked the bald chemistry teacher from the bottom of his heart, and thanked him for finally remembering something useful under his harsh education. Yuan Tiangang was very convinced of Li Su, and said that he would definitely use this thing for an experiment.

After dinner, Li Su arranged for Yuan Tiangang to stay in the mansion, and the next morning, he rushed to the Weiguo Mansion with Yuan Tiangang, and first did what he promised Li Yexu yesterday. However, Li Su obviously underestimated Li Jing's stubbornness, even after listening to Yuan Tiangang's explanation, he still refused to let Li Yexu enter the military academy, and now Li Su's donkey temper also came up, and when he saw that he couldn't move, he simply went into the palace to beg Li Shimin. In the end, Li Shimin came forward and talked secretly with Li Jing in the study for a long time, and then he moved the other party, but since then, Li Jing's eyes have been a little strange when he looks at Li Jing.

Li Su spent the whole August in a busy time, and spent a Mid-Autumn Festival. Soon it was September. The foundation of the military academy has also been laid, and the construction of the main project has begun, and it is not far from the military academy. Datang Medical College, with Sun Simiao as its president, also began to break ground.

However, compared to the grand scale of military schools, medical schools are much more stingy. It's not that Li Shimin doesn't attach importance to medicine, but in comparison, the medical school is not what the Tang urgently needs now, so the Chinese military forces of the DPRK don't want to allocate funds, fortunately, Li Zhuo still has the trump card of medical guards in his hands, playing the sign of training medical soldiers for the Tang army, and finally passed the budget for the medical school, but the allocation is not very much.

Regarding the short-sightedness of Li Shimin and the Manchu Dynasty's civil and military forces, Li Su scoffed. It doesn't matter if they don't want to pay, they don't have to pay that money anyway. Therefore, on the basis of the appropriation from the imperial court, he added nearly double the funds. However, these funds are specifically used to train medical professionals in the private sector. Taught separately from the medical staff.

As for Yuan Tiangang's Taoist Academy, it is not up to Li Su to bother. The other party was wandering around Chang'an with a group of Taoist priests, in order to choose a site for the Taoist Academy. Because of Li Su's reminder, Yuan Tiangang and a group of alchemy Taoist priests added carbon black to the gum, which greatly increased the wear resistance of the gum, and now it is only a matter of time before they find a suitable formula, so the Taoist Academy has begun to prepare in the early stage.

The three colleges are all related to Li Su, and even all and half of the medical schools of the Taoist College must be funded by him, although in his opinion, as long as the college can be built, no matter how much money is worth it, but this has caused great dissatisfaction with Xijun, in her words, all the money she gave to her future son, even Li Su, a father, can't spend his son's money indiscriminately!

Counting that Xijun has been pregnant for more than three months, the initial danger period has passed, and the lower abdomen is also obviously bulging. This is not to cherish the gentleman's squeamishness, but as a princess, Wenxin has a fate, no matter where the princess is, there must be at least four maids by his side, for fear that something will happen to this child.

Compared with Xijun, a young pregnant woman who is not yet twenty years old, Concubine Yang, who is already in her thirties, can be described as an out-and-out elderly mother, and the delivery date is in September, for this matter related to the life and safety of Concubine Yang's mother and son, whether it is Li Shimin or Li Ke and Li Su, they naturally attach great importance to it, and even Li Shimin, no matter how busy he is, he will take a little time to accompany Concubine Yang every day, as for the two brothers Li Ke and Li Su, as long as there is nothing important, they stay in Wangyun Hall almost all day long.

However, Li Su is not idle, Concubine Yang is one of the four concubines, and childbirth is naturally a big event in the palace, so the maternity pavilion for childbirth was prepared early. However, when Li Su saw the maternity pavilion, he was angry and angry, because ancient medicine was underdeveloped, coupled with the influence of feudal superstition, so when the mother gave birth, there were many taboos, such as not holding sharp things, not listening to metal sounds, not seeing the wind and light, and so on.

The rest is just that, but Li Su can't figure it out, why can't the mother see the light? Because of this taboo, the entire production pavilion is airtight, and the windows are all sealed, and the room is pitch black.

Although Li Su doesn't understand women giving birth, at least the basic medical knowledge still knows, the maternity pavilion was prepared when Concubine Yang was seven months pregnant, during which the whole room was not lit or ventilated, you can imagine how many bacteria and viruses will breed inside, women give birth in this kind of house, the risk of infection is naturally much greater.

It was also seeing this maternity pavilion that made Li Su have deep doubts about Datang's midwifery technology, fortunately, there was still some time before Concubine Yang gave birth, so he simply brought the midwife's stable wife and asked her to tell him about the delivery process.

The Wen Po surnamed Liu, who delivered the baby to Concubine Yang, is over 60 years old this year, and I heard that she has been in the industry for nearly 40 years, and she is the Wen Po used by the palace to deliver them.

When Granny Liu heard such a strange request from Li Su at the beginning, she naturally refused to agree, after all, in the eyes of women's childbirth in this era, it is very unclean and taboo, and men are not allowed to participate at all, let alone inquire openly like Li Su.

However, for the safety of Concubine Yang's mother and son, Li Su stubbornly pressed people with his identity, and finally asked Granny Liu to talk about the delivery process, but when he heard it, he was scared that his whole body was numb, because the delivery process of Granny Liu was simply a mixture of medicine and witchcraft, and what bed god did she worship during the delivery, and there were many inexplicable links, some of which even Granny Liu herself couldn't say clearly, only said that the master taught it like this, it was all the things of the ancestors, and there would definitely be no mistakes!

At this time, Li Su couldn't sit still any longer, pulled Sun Simiao back from the construction site of the medical school, and found a group of doctors who were proficient in gynecology, more than a dozen stable women who were as proficient in midwifery as Granny Liu, and several medical women who were responsible for taking care of the body of pregnant women.

However, in the process of studying the midwifery technology, I don't know who stabbed Li Shimin in this matter. Although Li Shimin dotes on Li Su's son very much, it is a matter of Concubine Yang and the child's life, so naturally Li Su can't be allowed to mess around, so he criticized him fiercely regardless of 3721. Fortunately, Concubine Yang knew that her son would definitely not harm herself, so she was very supportive of him, and personally persuaded Li Shimin, coupled with the guarantee of Sun Simiao's doctors, he finally agreed that Li Su would continue to research new delivery techniques.

It is precisely because of Concubine Yang's support that the research of new midwifery technology is very smooth, and several stable women also use this technology to deliver women outside the uterus, which greatly reduces the risk, and even allows several pregnant women with dystocia to give birth to fetuses smoothly.

With these living examples, coupled with Concubine Yang's persuasion, Li Shimin finally agreed to let Concubine Yang also use the new midwifery technology, and also assured Sun Simiao that as long as Concubine Yang gave birth to a child successfully, the imperial court would vigorously promote this technology at that time, and all the personnel who studied the midwifery technology would also be heavily rewarded.

With Li Shimin's assurance, not only did Li Su let go of his hands and feet, but Sun Simiao and the people in the delivery team were also very excited and full of enthusiasm. The sealed production pavilion was dismantled, the windows were all covered with glass by Li Su, making it bright and ventilated, and the whole room was sprinkled with quicklime for disinfection.

As for the instruments used in the delivery, all of them are sterilized at high temperatures, and then soaked in alcohol, and the mother in charge of the delivery must also maintain hygiene, especially in the days when Concubine Yang is close to giving birth, Granny Liu and they have to wash their hands almost everything, and sometimes even disinfect with alcohol, which results in a lot of tossing for several older people.

Just when Li Su, who was the elder brother, had almost prepared everything, the little guy in Concubine Yang's stomach, who didn't know whether it was a younger brother or a younger sister, finally became impatient.

At noon on September 28 in the twelfth year of Zhenguan, when the two brothers Li Su and Li Ke were playing chess with Concubine Yang, Concubine Yang's chess skills were the highest, but because of pregnancy, Sun Simiao confessed not to let her bother, so she let her two sons play a few games, and she watched the game on the side.

Li Su is a stinky chess basket, not Li Ke's opponent at all, he lost seven or eight games in a row, and finally had the hope of winning in the last game, but Concubine Yang's stomach reacted, at first it was a faint pain, and slowly the pain became worse and worse, and the doctors who had been prepared around immediately asked Concubine Yang to be carried into the delivery room, and Granny Liu and a group of stable women were immediately in place, and Sun Simiao and other doctors with superb medical skills were also waiting outside the delivery room.

By the time Li Shimin hurried over from the front hall, all the personnel were already in place, waiting to welcome the birth of a new member of the royal family.