Mercury Dan is useless, and gunpowder is used for generations.

Kong Ming felt that the Dao Chiefs' inferences were not wrong.

After all, the later generations did use this "Great Breaking Pill" to fly with the things created by work, and they were able to glimpse the heavens and the earth and know the sun and the moon.

It's just that the next thing to do is to warn the Taoist elders.

lest they have not seen the magic of gunpowder before they are blown up by this Great Breaking Pill.

To give some space to the Daoists who were arguing fiercely, Kong Ming paced to the side and saw the last Dan prescription of the Daoists:

"Three saltpeters, three brown sugar, and one realgar, mash and grind them one by one, and mix them evenly to become Dan."

The Taoist leaders are really ...... Times.

Kong Ming admired it in his heart, this sucrose had only been made in Shu for half a year, and the Taoist priests had already used it for alchemy without any distress.

Sugar production requires a large amount of sugarcane, which was planted in Shu before, and it was enough to eat, and sugar production was a drop in the bucket, so the price of sugar remained high at this time.

Although Kong Ming has arranged to expand the planting, the first crop of sugarcane will not be harvested until autumn this year.

However, considering it from another direction, Kong Ming also sighed with a long sigh:

So you don't have a reliable Dan prescription at all, do you?

That being the case, this "Yandan" recipe should be written down first, and then slowly developed after the sugar is not bad.

After writing down his opinions, Kong Ming also closed the door intimately for the Taoist elders when he left.

Compared with Liu Zhang, today's Chengdu government has changed a lot.

Even if Liu Bei has taken the two ladies to Chengdu now, they can only live in three or five rooms.

The vacant palace was naturally requisitioned for various purposes, such as the alchemy of the Taoist masters, the development of glass by craftsmen, and the "Xiao Taixue" that Zhang Song is now very interested in.

Kong Ming did not bring his family to Chengdu for the time being.

As far as the public is concerned, his wife has set up a number of engineering workshops in Gong'an County, and the engineering has been thriving.

Privately, Kong Ming also wants to see his wife do something, especially after learning about "Chen Baoguang's wife", this idea is even worse.

Kong Ming now has a heavily guarded workshop in the palace, which is full of miniature models, craftsman drawings, and some images from the last light curtain known as "Mengxi Bi Tan".

The most conspicuous thing is, of course, a huge image of a sphere hanging in the center, on which is the word earth written by Kong Ming with great awe.

And now Kong Ming is staring at the earth and meditating on the way of chemistry.

The alkali method of plant ash that was called a "neuropathy" by the light curtain is indeed not complicated.

The burned plant ash is boiled with water, filtered with silk silk and left overnight, and finally the clear and transparent water above is alkaline water.

Although it may not seem to be much different from the water of the river, it is more viscous when used to cook porridge, and it can be used to soften the kudzu clothes when used to wash clothes.

If this alkaline water is used in papermaking, the pulp will usually be whiter, which is quite magical.

But what's the truth inside?

Kong Ming, who was in deep thought, returned to the side of the case and wrote down the words "grass and wood ash" on the paper.

Then under the three words of grass and wood ash, the word "fertile field" was written.

Since the pre-Qin drafting, wood ash has been used to fertilize the field, but due to regional differences, the amount of plant ash used in the fertile field is also too much.

After a little thought, Kong Ming wrote down what he learned in turn:

In Hedong County, the fields are not covered with grass and wood ash.

Plains County, grass and trees per acre of gray nine.

Nanyang County, one bucket of grass and wood ash per acre.

Wuling County, each acre of grass and trees ash half of the wood.

Half Hu is five buckets, fifty liters, and five lilies.

From this, Kong Ming wrote about the observed phenomenon: from north to south, the effect of plant ash on fertilizing fields became more and more significant.

After a pause, Kong Ming continued to write down: It can be seen from the alkali method of plant ash that plant ash is rich in alkali.

After trying to recall whether there was anything missing, Kong Ming cautiously wrote down the conclusion: the north may be rich in alkali, and the south may be alkali-deficient.

Guesses were written in passing:

The difference between orange and Huainan and Huaibei is different because of the amount of alkali?

Is the lack of bamboo in the north and the lack of leeks in the south also related to this?

With a light breath of turbidity, Kong Ming looked back at the page he had written, and suddenly felt a little fun of the so-called "science" in later generations.

The difference between these lands will not be changed by the will of God, nor will it be changed by the constitution of heaven in the mouth.

It is inferred by oneself based on what it has learned.

Recognize and summarize their commonalities, explore and dissect their differences.

In the end, it may be possible to conclude that future generations can follow the rules of the millennium, as later generations have done.

The April evening breeze was still a little cool, but Kong Ming now felt a little hot.

In the end, I went to the yard for a walk in the middle of the month, and then went back to sleep with my clothes together.

The next day, Kong Ming was pulled up by Liu Bei, who was full of excitement.

"Kong Ming, the boat of Yuan Zhi has arrived in Qianwei County!"

Qianwei County is only one hundred and forty miles south of Chengdu.

Because of staying up late last night, Kong Ming's thinking was a little sluggish, and he only understood after thinking about it.

It seems that Yuan Zhi went upriver by boat, went to Jiangzhou, crossed Jiangyang Wuyang, and came to Chengdu by water.

The southeast wind blows in spring and summer in Yizhou, so it is also a good wind to come to Chengdu from Jingzhou, and it is indeed a good choice to sail.

When Kong Ming came back to his senses, he was already standing in the south of Chengdu with Liu Bei.

Liu Bei couldn't stand at all on the side, constantly wandering anxiously, stopping and tiptoeing to look south from time to time, hoping to see the boat immediately.

Kong Ming summoned Chen Zhi's entourage to wash his face with an urn of water, and after cheering up his spirits, he proposed:

"Since the lord is so anxious, why don't you go out of the city to greet him?"

But soon, Kong Ming, who wanted to take the opportunity to take a break, regretted his proposal.

Liu Bei, who was itching, agreed to Kong Ming's proposal, and then took Kong Ming with him to go ten miles south of the city.

After ten miles, it was still not enough, and it was difficult to travel another twenty miles, until the waterside path was difficult to walk, Liu Bei did not stop.

Fortunately, after this bump, Kong Ming sobered up a lot, looked at Liu Bei and quipped:

"Why don't you shovel the hill in front of you, after all, it makes the lord not see Yuan Zhi's face."

Liu Bei's face was not embarrassed, and he laughed:

"When I heard the news of Yuan Zhi's return, I have been tossing and turning night after night."

"The moon has been waiting, why worry!"

Kong Ming laughed, not believing it at all.

If you are really not in a hurry for a while, why go out of the city for thirty miles to the end of the road?

Fortunately, a small boat turned out from behind a hill in the distance.

Kong Ming rode on his horse and looked into the distance, and could see a thin scribe in the bow of the ship, with fluttering clothes, and he was nodding frequently towards the north.

Liu Bei next to him couldn't hold it back:

"Yuan Zhi!"

"I'm here, Yuan Zhi!"

Perhaps because the trees on the shore were dense and the boat had no intention of slowing down or pulling over, Liu Bei was in a hurry, and even drove his horse to wade through the water, standing in the shallows of the river and calling.

Liu Bei startled Kong Ming and his soldiers.

Immediately, some of his own soldiers rushed forward and snatched the reins from Liu Bei's hand to pull the mount back to the shore.

The horse's head turned, and Liu Bei also turned around and continued to shout: "Yuan Zhi~"

Fortunately, it was conspicuous enough at this point, and the ship finally noticed it.

Kong Ming saw that the thin figure was also anxiously circling around the bow of the ship at this time.

The ship began to slow down and moved closer to the shore.

After approaching the shallows, Xu Shu did not hesitate, and jumped off the boat with an arrow step.

Liu Bei was in a hurry, and immediately jumped from his horse to the river, and then stretched his ape arm lightly and dragged Xu Shu ashore.

The two palms were clasped tightly together, Liu Bei looked at Xu Shu's water-soaked bow and his shoes that had been stained with mud, and softly reproached:

"Why should Yuan Zhi take the risk lightly? Here to Chengdu is only 30 miles, you can get to it in a moment, you should cherish your body! ”

Xu Shu looked at Liu Bei carefully, there seemed to be a thousand words in his eyes, but in the end, he bowed slightly:

"Lord, the concubine is back!"

"Good! Good! ”

Liu Bei responded, took out a hand and patted Xu Shu's shoulder:

"It's good to come back."

Liu Bei took two steps back and looked carefully, and finally took Xu Shu's hand and sighed with joy:

"Yuan Zhi has returned, and he can return to Han with one heart in the future, and he will have no regrets!"

The two of them held hands, and the hems of their clothes were all wet, and their feet were stained with stinky mud, but it did not affect their pleasant conversation.

Liu Bei counted Xu Shu's recent achievements one by one with a happy face, and Xu Shu listened quietly with a smile.

In the middle, Xu Shu will also say in a tone that Xu Du has seen and heard in the south.

It wasn't until the end that Xu Shu was helped on the horse by Liu Bei, and at this time, the former Yingchuan ranger had time to say hello from afar:

"I knew the name of Zhuge Wuhou, and I would have invited Kong Ming to go out of the mountain with me!"

Seeing that Liu Bei helped Xu Shu on the horse, he also turned over, and the two rode together, and Kong Ming held the fan and gave it over:

"It's not too late to get into Hanye."

After that, the old friends also looked at each other and smiled.

The way back to Chengdu was much easier, and the three of them chatted slowly all the way.

"Shiyuan can be in Chengdu?"

"In Hanzhong, the military situation is supervised, Yongliang is in danger, Guanzhong is ready to move, and he can't easily walk away."

"If the Cao thief gets Yongliang, he can connect Guanzhong, but it is difficult to get out of Hanzhong; We are waiting for the momentum of Yongliang, then Cao thief Chang'an is difficult to defend, only to retreat to Tongguan, Hanzhong is indeed Shiyuan. ”

"Not really...... The lord in Chengdu newly obtained a talent called Fa Zheng, quite a ranger style, and he also has the ability to supervise the Hanzhong. ”

"Oh? I'll see you tomorrow! ”

"Ahem!"

So Kong Ming asked about the news of his old friend.

"I heard that the lord said that Guangyuan wants to settle in Jiangling temporarily?"

Xu Shu sighed:

"Guangyuan is not Cao Chen, and he does not want to vote for the lord, he is righteous to me, and he can't force it."

"When he sent me to Yizhou, Guangyuan said that he wanted to find a job in Jiangling and look at the future."

Let's look at the future...... Kong Ming nodded, everyone has their own ambitions, so there is really no need to force it.

Xu Shu remembered that the other person smiled and said:

"Doctor Zhang, who was on the same boat, complained a lot about Kong Ming."

"It is quite rude to say that Kong Ming is clearly quite insightful in medical skills, but he is always vague, and it is quite rude to ask Doctor Zhang to study medical theory by himself."

Kong Ming was stunned, and then laughed:

"It's good to come, there are few people in the mountains here, and there are plenty of medicinal materials, which is a blessed land for Doctor Zhang!"

Talking and laughing, Chengdu is already in sight.

Kong Ming saw the Wu girl standing quietly on the side of the road at a glance, and couldn't help laughing:

"Whether to accept or refuse, the lord should make a decision as soon as possible."

Xu Shu also saw the tall woman at a glance, and asked a little curiously:

"...... this?"

Kong Ming looked at Liu Bei's slightly embarrassed face, and said with a smile:

"This is the daughter of the Wu family surnamed in Chengdu, who was once asserted by the prime minister as a noble."

Xu Shu immediately understood, and laughed:

"If you talk about the noble, only with the lord!"

(End of chapter)