After a long period of observation and thinking, Xiao Yiran wanted to teach some more skills to the army to improve the combat effectiveness of the troops. In terms of fighting, all Xiao Yiran knows is military punches and simple assassination moves. I remember when I read the "Book of Han" before I was reborn, there was a passage describing Xiang Yu in it. Xiang Yu didn't want to learn one enemy, but wanted to learn ten thousand enemies. The so-called 10,000 enemies refers to the art of war. Xiao Yiran has not systematically studied the art of war, but has only read "The Art of War" as a leisure book, and can probably remember some of it. As for "Thirty-six Strategies", Xiao Yiran just heard a little. What is "going up", what is "splitting plum blossom plan", what is "encircling Wei to save Zhao", what is "darkness Chen Cang" and so on.

Since deciding on Xiao An and Xiang Lin for a month, he brought people back to Longshan, and Xiao Yiran wanted to pass on all the knowledge he knew about the art of war to the army in this month. The first thing Xiao Yiran had to do was to sort out the things in his head. Without pen and paper, Xiao Yiran felt a little embarrassed.

"Wei Wen, you lead a few people to pick more wide leaves, after picking them back, press them with a wooden plank, and put them in a place where the sun can't dry them, I'm useful, be fast."

"Wei Dong and Wei Nan, you two go and collect some plant ash, use stones to refine the plant ash, and bring it to me."

Xiao Yiran knew that the ink before rebirth was made of pine smoke, but in this tropical area, it seemed that there were no pine trees, so he could only temporarily replace it with plant ash. As for the brush, Xiao Yiran thought about it and called Xuan Liang.

"Xuan Liang, go to the jungle and catch a few weasels, live or die, I want to use the hair on their tails."

"Xiaochun, the four of you sisters go to the river to pick some finger-thick reeds, and you want to get acquainted with them a little more."

Soon, Xiao Yiran made a few brushes from the tail hair of the weasel and the stem of the reed stem. Take out one, ask Xuan Liang to hand it to Liang Mu, and tell Liang Mu to do more. After Wei Wen's leaves were dry, Xiao Yiran dipped his brush in the gray-white ink made of plant ash and wrote the knowledge of the art of war in his mind on the leaves.

While writing, let Xiao An and Xuan Yi follow by their side, writing and explaining to the two of them. After writing each part, he asked Xiao An to show Xiang Lin, Lin Zhan and others, and told a few people the meaning of it according to what he heard from Xiao Yiran.

Xiao Yiran's calligraphy is awkward even for her to look at. After all, before the rebirth, calligraphy had become a kind of cultural cultivation, and it had long ceased to be the main way of writing. Fortunately, no one here can write, no matter what Xiao Yiran writes, no one will say anything.

Xiao Yiran had been busy for five days before he sorted out all the knowledge about the art of war in his mind and gave a detailed explanation to Xiang Lin and the others. In the evening, Xiao Yiran, who felt a little tired, came to Mengyue River for a walk. In the afterglow of the setting sun, a fish jumped up from the river and plunged into the water. Xiao Yiran suddenly remembered that it seemed that he hadn't eaten fish for a long time. Since leaving Yongsan, I have never eaten fish and shrimp. Looking at the fish jumping in front of her, Xiao Yiran remembered a question, why did no one in the clan ever mention fishing and eating to her?

"Xuanyi, have you ever eaten fish in the river?"

Since the last elders' meeting Xiao Yiran announced that Xuan Yi would take over Xiao An's work on the Mengyue River, as long as there was nothing else, Xuan Yi would hardly leave Xiao Yiran's side during the day.

"I've eaten it."

"Then why hasn't anyone ever mentioned fishing to me?"

"The emperor didn't speak, and the clansmen thought that the emperor didn't want to fish."

"Huh?!"

Xiao Yiran thought to himself, this is too, too much, what is it, Xiao Yiran didn't think of a suitable word to describe it.

"Xuanyi, tell sù Liangmu, find a way to make a fishing tool, since there are fish in the river, why don't we eat them?"

Xiao Yiran's words are naturally orders. Soon the beams made a fishing net made of flexible bark. When Xiao Yiran saw this fishing net made of bark, he was not optimistic. With such a turbulent river, isn't this fishing net made of bark washed away at the slightest hint of the water? Facts have proved that Xiao Yiran's assumption is of course wrong. The nets made of bark were not washed away by the river, but many fish were caught.

"Xuanyi, let Liang Mu come to see me immediately."

Xiao Yiran looked at the bark woven into the fishing net, and an idea came to his heart. Is it possible to use this bark instead of hemp? If it succeeds, it's great, and a lot of things will be solved. You can rub the rope, you can weave it into linen, you can make a pocket with linen, you can use twine.

"Liangmu, isn't there a lot of this bark?"

"Emperor, this is the bark of the hemp tree, and the hemp tree generally grows on the edge of some swamps, and there are quite a few of them."

"Send someone to peel some more bark, soak it in water for a month, and then fish it out and show me."

It turned out to be called "hemp tree", Xiao Yiran didn't know if this kind of tree had anything to do with hemp. It's just that I can't figure out why I have never seen or even heard of a "hemp tree" before being reborn, and it can't be extinct like other species, right?

Soon after being sent to Lin and Xiao An, the soaked hemp bark was placed in front of Xiao Yiran. Carefully pulled out one and let Wei Wen rub it into thin wisps, Xiao Yiran took it in his hand and walked around for a long time, and finally it was determined that the bark of this hemp tree could completely replace hemp. As a student of archaeology, Xiao Yiran is very familiar with the making of twine.

"Xuanyi, give these soaked hemp barks to the clansmen who are too old to work in the fields, and let them dry the hemp bark and beat it lightly with a thin wooden stick until the hemp bark is beaten like this."

Xiao Yiran said, took a thin twine from Wei Wen's hand, and handed it to Xuan Yi to see.

"Inform the hunting department to suspend the hunt and go get more hemp bark to soak it on. Remember, don't cut down all the hemp trees, leave enough to keep the hemp forests to flourish. Also, after beating the part of hemp bark in front of me into twine, I handed it over to the textile department, and used part of it to weave it into linen cloth to try, and the other part was kneaded into hemp rope the thickness of my thumb. ”

This has been discovered, which has made Xiao Yiran excited for a long time, although I don't know why the emperor is so excited, but the emperor's good mood has also infected the clansmen. For a moment, the entire dragon clan seemed to be beaming.

The woven linen cloth and the kneaded hemp rope were quickly placed in front of Xiao Yiran. Xiao Yiran stroked the linen cloth in front of him for a long time with his hand, thinking to himself, he could finally wear cloth shoes, and no longer wear straw sandals that pierced people. Not only that, but with Mai, if there is a war in the north in the future, the soldiers will also have clothes to resist the cold weather in the north. Moreover, there is no sewing of twine into the skinned clothes. This undoubtedly solved a big problem for Xiao Yiran.

"Xuanyi, take the linen cloth to the Ministry of Textiles, make a few pairs of shoes first, I really have enough straw sandals."