Thanks to Wang Feng's arrival in time with more than 500 men, he killed behind the barbarians in a critical situation, and then the barbarians finally collapsed. The barbarians shouted and fled in scattered lives.

There are jungles everywhere in this place, and the reinforcements will naturally not enter the jungle to chase those barbarians who are more flexible than monkeys. However, there are still some people who have run away. The large army that flocked to catch more than sixty unlucky barbarians who had no time to escape.

When Wang Feng and Guo Huazhang saw Ma Fen and Bai Er and five surviving special training soldiers, they looked so miserable and embarrassed! Ma Fen was a little better, and could barely stand, his body covered in blood, and it seemed that he was not seriously injured. But the others were miserable, and they were all carried down the mountain, especially Fang Yishan was the most injured. He was hit by a wooden spear on the back of his head. At this moment, he wrapped around circles of gauze, and the gauze was almost covered with blood, red and black, and strangely terrifying.

Liu Wenbing lay on the stretcher, venting his dissatisfaction:

"You kid Wang Feng, you guy, have been rushing over until this time. I almost died at the hands of those monkeys. Damn it!"

Liu Wenbing's breath of speaking was a little weak, so Wang Feng had to patiently explain:

"Brother, isn't that! Because the large group of people went to cut down trees, we gathered the troops as soon as possible when we received the letter. It's not that easy! Thanks to General Guo, he gathered more than 500 people at the fastest speed. The barbarian chief was very cunning, and all the roads were all over the road. We rushed to it quickly, and it was still fine! Brothers insisted on our arrival! Brothers, admired it! Manly!"

When he returned to the station, Fang Yishan died of serious injuries.

None of the others were injured in the vital points, most of them were injured in their arms and legs, and they seemed to be in danger of life.

After a few days, the seven survivors recovered quite well. Ma Fen was the least injured and had already resumed normal activities, just like nothing happened.

However, on the tenth day, Ma Fen and Bai Er and four survivors suddenly had a fever. They were afraid of the cold first, and then they started a fever. The high fever did not subside, and at the same time they were particularly afraid of the cold.

Ma Fen and the other two understood that this was a malaria attack.

That day, when the mountain was surrounded by enemies, everyone was lying in the grass, and they didn't know how many times they were bitten by mosquitoes. At that time, the powerful enemy was surrounded by mosquitoes, so mosquito bites were naturally nothing. Now, when I think about it, many of these biting mosquitoes must be carriers of malaria parasites. If they were bitten by them, it was natural to get malaria.

After the development of science and technology in later generations, it was clear that malaria was originally a parasitic disease caused by mosquito bites carrying malaria parasites, and it had nothing to do with miasma. All three people knew that the special drug for malaria was quinine, which is cinchona frost. At first, people only knew that the bark of the cinchona tree could be ground into powder to treat malaria, and later they mastered the refinement of quinine. However, the cinchona tree was still growing in South America and could not be collected at all.

The three of them looked at each other and thought to themselves that they were fine now, wait for death!

However, it is said that Mao Geng got a medicine bath prescription from the Dong people, which seemed to have some effect on malaria. The three of them thought that this medicine bath might have some effect on strengthening the body, that is, taking a medicine bath can improve the body's resistance. In the era without the special medicine quinine, the only hope is to rely on its own resistance to endure it and eventually survive this damn malaria.

If you are a dead horse, try taking a medicine bath!

Ma Fen's body was not seriously injured. At this moment, the small wounds had already scabbed, so he could take a medicine bath without any obstacles, but others could not. Liu Wenbing's thighs and arms were not injured, so he had to settle for the second best and scrub his body repeatedly with medicine. Tang Kai was better, because he was mainly injured in his calves and face, so he just exposed his calves outside the wooden barrel when taking the medicine bath.

The medicinal bath therapy lasted for two consecutive days, but the person was not cured. Instead, two more special trainers who killed the enemy on the same day died. Now only Bai Er and Du Chong are still surviving.

Liu Wenbing's condition did not improve at all. He still had fever, stomach cold, and his body began to edema.

"Brother Han, brother Wang Feng, I finally traveled to the Song Dynasty. As a result, you see, I'm so fucking unable to think about it when I got malaria!"

Wang Feng looked at Liu Wenbing's miserable appearance and comforted him:

"Brother, don't be discouraged! This malaria is, even if there are no special medicines, there are six or seven out of ten that can be cured by themselves. Brother, I believe you can survive it."

Liu Wenbing smiled bitterly and said:

"Oh! I know my physical condition myself, I'm afraid I can't stand it for a few days."

When Han Huanzhang saw Liu Wenbing's pitiful appearance, he suddenly said:

"Brother, don't be discouraged! Maybe you have to travel through time once, yes! That's it. When you, Liu Wenbing, you may have traveled to the Qing Dynasty, maybe it was the Ming Dynasty, or the Tang Dynasty, or even the Han Dynasty. Well, I think it's better for the Han Dynasty! Brother, yes! Let's go to the Han Dynasty!"

Wang Feng also echoed:

"Yes! Brother, if you travel to the Han Dynasty, are you ready? The Han Dynasty has not invented gunpowder yet, don't think about your "meteor bomb". I think you have to do some other homework before traveling. As the saying goes, you have to be prepared for any trouble. Well, let's help you to see what is the most useful in the Han Dynasty." Of course, Wang Feng wanted to take the opportunity to distract Liu Wenbing from his attention. Liu Wenbing was afraid of death and was afraid of death. The more he was like this, the more unfavorable it was for the sick body. Therefore, he went with the flow and wanted to make Liu Wenbing relaxed. Don't always think about it as if he was going to die in the next moment.

When I heard that I could travel for the second time, although I knew it was to make me happy, Liu Wenbing still had the idea of ​​what to do. At this time, Liu Wenbing might be a little confused. Imagine the scene of traveling to the Han Dynasty, and I really couldn't think of anything to make a big splash. However, Liu Wenbing immediately thought of something and said very seriously:

"What you said is wrong! After I arrived in the Han Dynasty, I could actually create a 'meteor bomb'. Gunpowder seems to have no technical content! It's nothing more than nitrate, sulfur and charcoal, charcoal and sulfur in the Han Dynasty. As for nitrate, I remember that in the time travel novel, I mentioned the method of piled up the stool and soil and ash together, and then the nitrate soil will be produced continuously, right?"

"It seems like this." Wang Feng also read this method of salt, but he had never tried it.

Animal feces and urine contain ammonia, which is a basic chemical knowledge. Under the action of nitrified bacteria, ammonia is gradually oxidized from nitrite to nitrate, while wood ash is rich in potassium salts. The reaction between nitrate and potassium salts is achieved. The ** thing is dissolved in water and is not difficult to separate from the nitrile soil. Therefore, the preparation of nitrile is not a technical matter. As long as there is ammonia and wood ash, the conditions for the sunshine of water and soil are suitable, the magical creature of nitrified bacteria can quietly create nitrile soil and purify the nitrile soil to obtain purer nitrile.

Hearing that he could control the sauna by law, Han Huanzhang became interested immediately, his eyes shining, and he said:

"Can feces really produce nitride? I seem to have heard that the manure produces nitride from the mining ground in Chile. This is the first time I heard about the method you said. I think you both seem to be heard from. Wang Feng, if you have the ability, you can demonstrate to me tomorrow. No, no! I want to demonstrate to Liu Wenbing. He is going to travel to the Han Dynasty. At least he can pretend to be a Taoist master and can refine nitride easily. That is the master! If the magic of refining nitride is not effective, you may have to wear a bag. So, Wang Feng, you have to practice this matter so that our Liu Tianshi master can master a time travel skill, which is good enough to fool the Han Dynasty people, right! Maybe Emperor Wu of Han would be happy and would be the general of Liu Tianshi, so that there would be no Wei Qing and Huo Qubing."

Well, this is right. The talented Emperor Wu of Han should be more enthusiastic than the weak emperor of the Song Dynasty. However, it is really necessary to try to control sulphur first. It is obviously necessary to master a magical skill, so Liu Wenbing begs:

"Brother Wang Feng, you see, brother is like this. The only hope is to travel through time again. Brother must satisfy my little wish! I want to seize the time to learn a craft. Well, what about the necessary craftsmanship for traveling through time? I have to express it before I travel through time! Please, buddy, I think this is the case. You can explain it as quickly as possible, and immediately start the earth and nitrogen demonstration project. OK?"

Haha, it seems that if Liu Wenbing didn't see with his own eyes how earth sauna was made, he would have died with his eyes open.

Then try it!

More than a thousand people excreted countless feces and urine every day, and under the command of the travelers, simple toilets have been repaired long ago. Therefore, the resource of feces has been stored in a centralized state before. Therefore, there is no shortage of main raw materials for producing soil and sausage, and of course there is no shortage of grass and ash. So Wang Feng mobilized manpower and arranged experimental production and sales.

Just two days later, Liu Wenbing asked if it had produced nitrogen.

Seeing Liu Wenbing's appearance, malaria continued to torture him. This guy's face was still as bad as ever, but it seemed that his condition did not worsen further. Well, poor guy! Paying attention to nitrate can always make him divert his attention. Yes, as long as he can divert his attention, you might as well talk about other topics.

"Brother, the production of nitrification is not so fast! Nitrifying bacteria also have time to chew a little bit, and digest it a little bit! As the saying goes, slow work produces meticulous work. I want to discuss with you the problem of your ‘meteor bomb’. With gunpowder, making your ‘meteor bomb’ is a piece of cake, but in my opinion, your ‘meteor bomb’ needs to be improved.”

"Hehe! I have already had a solution for this. It is not enough to use bamboo tubes as launcher material. I have to change it to iron or copper. The Han Dynasty already had iron tools, and even in the Warring States Period, bronze can always be used. Even in the Warring States Period, there are always bronzes. I was a Chu country in the Warring States Period. When I took out the trump card of the ‘Meteor Bullet’, I guess Qin Shihuang would be out of luck!”

This guy actually wants to go to the Warring States Period to be so arrogant!

However, if you want to defeat the Qin army, the copycat weapon is probably not good.

"Don't you think the launcher should be designed longer!" Wang Feng felt that the bamboo tube emitter used before was a little shorter and could not maximize the use of the chemical energy thrust of gunpowder.

"You said it well, I thought of this too."
Chapter completed!