Shortly after sending Xiao Mo and Yang Yuan away, Divine Doctor Guo came to the door.

Lin Yun welcomed the old man into the house, made tea for him, and asked with a smile: "Sir, have you decided to accompany us to Kyoto?"

Divine Doctor Guo took the tea cup and said solemnly: "Madam's condition has improved a little. It's too rash to go to Kyoto now. I tried to persuade her a few times, but she insisted on going, and so did I~"

When the old man said this, he started to drink tea.

Lin Yun advised: "Since my aunt is determined to go, she has a reason to go. Let's just take good care of her health."

Doctor Guo: "Let's not talk about this anymore. I came here today just to ask you about the lung disease virus and bacteria you mentioned last time. I am very curious, how can I see these viruses and bacteria?"

Lin Yun thought for a while and asked: "Sir, do you know there is something called a microscope?"

Divine Doctor Guo asked doubtfully: "Microscope? Why have I never heard of this thing?"

"What about glasses? You must have heard of glasses, right?"

Divine Doctor Guo nodded and said, "I've been lucky enough to see glasses before. In the early years, I was diagnosing the pulse of the Supreme Emperor in the palace, and I saw glasses passed over from the West. I heard that these things can enlarge the fonts, but it's a pity that I didn't see it with my own eyes.

Witness the magic of this thing.”

"What you are talking about are reading glasses, which are specially used for elderly people with vision problems. The lenses of reading glasses use the principle of convex lenses to form images, which magnifies writing to the point where it is clearly visible to the human eye. The same principle applies to microscopes, which can capture tiny things that cannot be distinguished by the human eye."

Objects are enlarged to a size that the human eye can distinguish. For example, the water we drink contains many bacteria, which can only be seen through a microscope."

Doctor Guo widened his eyes and said, "How is this possible? If there are bacteria in the water, wouldn't it be possible for us to get sick all the time?"

Lin Yun was confused by the questions from Divine Doctor Guo. Those modern medicines are really not easy to explain clearly.

After thinking for a while, he simplified the complex and said: "Sir, I don't know. There are several types of bacteria, some are good, some are bad, and some are harmless. Even if our body absorbs a small amount of harmful bacteria, it will be eliminated by our own immunity.

It kills them with force. Only when the human body’s immunity cannot subdue harmful bacteria will symptoms of infection appear.”

Doctor Guo said in surprise: "Boy Yun, is this what the Taoist said to you?"

"Exactly."

"What a pity, what a pity."

Divine Doctor Guo said it was a pity twice, and then added: "If you are lucky enough to see that Taoist again, you must introduce me to him."

"OK."

Lin Yun promised, but smiled secretly in his heart: "I will definitely not be able to fulfill your wish for you."

After chatting about the business, Divine Doctor Guo changed the subject and smiled at Lin Yun: "Boy Yun, you are going to Beijing in a few days. How about I take you to Xiao Qinhuai tonight to see it?"

Lin Yun asked in astonishment: "Aren't we banned from living? How can we get out?"

Dr. Guo said happily: "I had a lot of doubts about the theory that lung disease is extraordinary for people. Now after listening to your analysis, I suddenly understood. I guess there are indeed people with lung disease who are extraordinary and people who are not. I think the Jia family

This girl's symptoms should be the kind that are no more than normal."

Lin Yun: "Having said that, I think we should be more cautious and wait until my aunt recovers from her lung disease before relaxing the restrictions."

Divine Doctor Guo twisted his beard and smiled and said: "Boy Yun, I think you are indeed a talented student of medicine. How about you become your teacher and I can teach you what I have learned in my life?"

Lin Yun suddenly said after hearing this: "So, sir, you were testing me with words just now?"

"No, no. I have really developed a love for talents. If you can take me as your teacher, you will surely be better than your master."

Lin Yun: "I'm sorry, I'm not interested in studying medicine. The higher the medical skills, the greater the risk. I don't want to follow in the footsteps of the miracle doctor Hua Tuo."

When Divine Doctor Guo heard this, he immediately fell into silence. After a while, he sighed softly and said, "Oh! I didn't expect that your kid can see more clearly than I do."

…

While the two were talking, they saw Pomegranate walking in from the door with a little maid.

Lin Yun hurriedly stood up to greet her and said, "Sister Pomegranate, why are you here?"

Pomegranate first bowed to Divine Doctor Guo, and then smiled at Lin Yun and said, "My wife sent a slave to tell my nephew that you should prepare ten boxes of high-quality perfume to take to Kyoto as a gift for my wife."

Lin Yun asked in surprise: "Why do you want so much perfume?"

"I don't know, I don't know. Anyway, it's my wife's order, so my nephew will just do it."

After Shiliu finished speaking, she reached out and took out a stack of silver notes from her arms and handed it to Lin Yundao: "This is five hundred taels of silver notes. My wife asked the slave to give it to you."

When Doctor Guo saw the stack of banknotes, he immediately looked at Lin Yun with wide eyes and asked, "Boy Yun, what perfume is worth so much money?"

Lin Yun quickly took the banknote, smiled at Shiliu and said: "Sister Shiliu, go back and tell your aunt for me that I will prepare twenty boxes of perfume so that she can give it away as she pleases."

Shiliu pursed her lips and smiled: "Then I will thank my nephew for my wife."

"You're welcome, we are all family members."

After Lin Yun finished speaking, he rushed out the door and shouted: "Zhong Yi, go and get a box of perfume for me and give it to Sister Pomegranate."

Pomegranate hurriedly refused: "Master nephew, this slave cannot bear such expensive perfume."

Lin Yun: "Sister Pomegranate, you have worked hard to take care of my aunt. This box of perfume can be considered as my gratitude to you."

Pomegranate struggled for a while, but still couldn't resist the charm of the perfume, and immediately said shyly: "Thank you, my nephew, for the reward."

After sending the pomegranate away, Lin Yung just came back when Doctor Guo grabbed his sleeve and asked eagerly: "Boy Yun, what perfume is worth fifty taels of silver a box? Show it to me quickly."

Lin Yunle said: "Old sir, perfume is for women. Why are you, an old man, asking about that thing?"

Divine Doctor Guo: "Stop talking nonsense and take it out for me to see."

"All right."

…

In the next few days, Lin Yun followed Lin Ruhai's request and wrote several classics and policy articles and gave them to him for review.

His classic articles made Lin Ruhai shake his head, and Lin Yun even began to have self-doubt, secretly wondering if his scholar was a cheap man who paid off the examiners.

However, his policy paper was still praised by Lin Ruhai, especially the various shortcomings and several suggestions about the salt course, which made Lin Ruhai nod frequently.

Of course the other party didn't know that most of the insights in this article were summed up by Lin Yun's conversations with Dr. Guo and the old housekeeper.

As a famous local doctor in Yangzhou, Dr. Guo also had unique insights into the shortcomings of salt classes. Coupled with the guidance of the old housekeeper, Lin Yun used this policy paper to tactfully suggest to Lin Ruhai that without taking action against several major salt merchants.

, we can start by cracking down on the proliferation of illegal salt and straighten out the salt policy in Huaihe and Huaihe Rivers. In this way, political achievements can be made quickly and the resistance will be relatively small.

Of course, cracking down on illegal salt sales will inevitably offend officials who profit from illegal salt sales. Without the full support of the patrol battalion responsible for cracking down on illegal salt, there is little hope of success.

The patrol camp must be the key target of bribery by private salt dealers. Asking them to investigate private salt dealers is tantamount to a thief shouting to catch a thief.

The reason why he wrote this thing was that Lin Yun wanted to remind Lin Ruhai in a subtle way that before the emperor could not fully grasp the power, he must not use the knife on those salt merchants with deep backgrounds.

Lin Ruhai was naturally well aware of Lin Yun's little thoughts. Although this boy's understanding of the proliferation of private relationships was only superficial, his good intentions still moved Lin Ruhai.

While Lin Yun was busy studying, Jia Min's health gradually recovered. Not only did her diet return to normal, but her coughing also stopped.

As her health gradually improved, Jia Min was anxious to return to her hometown to prepare gifts for her trip to Beijing. At her strong request, Dr. Guo finally nodded and agreed, lifting the ban on other hospitals and allowing her to return to her hometown to reunite with her family.

…

This morning, after Daiyu finished writing a post at her desk, she put her little hand to her mouth and shouted with a warm breath: "Xueyan, bring me a cup of hot tea quickly."

"Coming!"

Xue Yan agreed outside, quickly made a cup of hot tea and brought it over, handed it to Dai Yu and said: "Girl, is the post ready?"

Daiyu held the teacup in her hand, took a sip of hot tea, and said, "It's ready."

Xue Yan said happily: "Girl, let's continue playing flying chess."

Daiyu said with a look of disgust: "What's so fun about flying chess? It's not as good as Yi Go."

Xue Yan: "I think it's quite fun. Sister Zijuan also likes to play that."

"Then you go play with her."

"Girl, wasn't Sister Zijuan sent by you to inquire about the young nephew?"

Daiyu said angrily: "Don't talk nonsense, I didn't let her go."

Hee hee hee~

The little maid saw that her girl was not talking about what she meant, so she secretly had fun on the sidelines.

Daiyu glared at Xueyan in shame and was about to lose her temper when she heard brisk footsteps coming from outside the door.

She hurriedly turned to look at the door, and saw that the door curtain was lifted, and her maid Zijuan ran in quickly from outside.

Before anyone entered the house, Zijuan shouted loudly: "Girl, my wife is back."

When Daiyu heard that her mother was back, she immediately stood up in surprise, threw the tea cup in her hand on the table, turned around and ran out the door.

Xue Yan shouted behind her: "Girl, it's cold outside, please put on your cloak before going."

Daiyu ran out of the door as if she had not heard anything, and saw a group of people walking on the gravel path opposite. The person walking in front was her mother Jia Min, followed by Lin Yun and several maids and women.

"Mother!"

The little girl called out in surprise, then ran over quickly, threw herself into Jia Min's arms, and cried non-stop.

Jia Min quickly took out her handkerchief, wiped away her daughter's tears, and smiled fondly: "Yu'er, do you miss your mother?"

"Yeah, yeah,"

Daiyu nodded while complaining: "Next time mother goes on a far journey, please don't leave Yu'er behind again."

"Okay, mother promises you."
Chapter completed!