As for which highly toxic alkaloid Hou Bo used, I guess it is strychnine. Because it is mentioned in the book that the alkaloids he used were “extracted from a poison used by the South American natives to make poisonous arrows” by his professor, and the South American Indians often extracted it from the Nux vomica plant and used it to paint their arrowheads. The poison is strychnine. But this is just my own opinion and may not be correct. [Splenomegaly]·Major John_Sholto suffered from the disease for many years and killed half of his life (four signatures) The causes of splenomegaly are chronic and acute recurring infections. I believe Sholto The major's infection also falls into this category and is a chronic infection. Chronic infectious diseases, including schistosomiasis, perceptual endocarditis, syphilis, tuberculosis, etc., such splenomegaly can be moderate to severe, hard in texture, and often have a history of living in endemic areas (Major Sholto's India Life...), it is generally not easy to return to normal after treatment, especially recurring infections, which can cause significant enlargement of the spleen. There are many treatment methods for this type of splenomegaly, so I won’t go into details here, only Western medicine will be mentioned. The treatment method of Western medicine is generally a clean surgical removal method. However, it can only relieve the pressure on the liver and is not a strict treatment. Moreover, spleen removal will also reduce the patient's immunity and even face the risk of major bleeding. The side effects are serious. Remember the bottle of cinchona in the major's room? Cinchona is also quinine (also an alkaloid). Quinine is a special medicine for treating fever and malaria. This bottle of cinchona not only shows that the major's splenic enlargement is closely related to his life in India, but also shows that the major also suffers from complications caused by splenic enlargement. It is difficult to save a person with such an illness. I hope that no one who reads this post will suffer this fate. [Castor oil and strychnine] Dr. Watson suggested Thaddeus Sholto use drugs to treat depression when Mellie was distracted (4) Let’s talk about castor oil first. Castor oil has great medical value. As a medicine, it can detoxify and fight cancer, and can be used to treat accumulated poison in cancer tumors. It can also treat burns, dog bites, headaches caused by wind, coughs, and deviations of the mouth and eyes. According to traditional Chinese medicine, the reason why castor oil can cure so many diseases is because it can "draw out the disease qi", "so it is used in many ointments". But castor oil is not a panacea after all. I don’t see how castor oil can be effective in treating depression. Little Sholto has really exhausted all folk remedies. Strychnine, also known as strychnine (also a member of the alkaloids), is now mostly extracted from strychnine seeds. Stychnine is a white rhombic crystal and is extremely toxic. Adults cannot take more than 5 mg at a time. It tastes very bitter. Even if it is diluted to 1:670000, it still has a bitter taste. Stychnine can selectively excite the spinal cord, enhance skeletal muscle tension, and also have a certain excitatory effect on the cerebral cortex and visual and auditory organs. This may have something to do with the purpose of treating depression, but Watson actually asked little Sholto to take a large dose of strychnine. No wonder he hoped that the latter would not do what he said, otherwise he would die. Alas, this shows how attentive Watson was when he was distracted for Mei Li. In view of its huge toxicity, strychnine can be used as a rat poison or as a poison to kill rodents. This of course also includes humans... People who read this post are not allowed to go and test it! [The back of the deceased's head... was broken by a heavy blow with a heavy weapon]·Chinese version of the forensic autopsy report after the death of old McCarthy (The Secret Case of Boscombe Valley) The kind of injury mentioned in the book is the first of its kind in modern forensic medicine Blunt force trauma to the head. Blunt force injuries are mechanical injuries; blunt force injuries are not necessarily injuries caused by objects, which also include unarmed injuries (boxing, kicking and bites). However, "The Complete Works of Sherlock Holmes" mainly talks about the impact of objects on Injuries caused to the head, so here I will only introduce the injuries left on the head by sticks, ax backs and hammers among tool injuries. Since I know very little about forensic science, the following text is taken from the Forensic Medicine Premium Course Network. Interested fans can go there to learn other forensic science knowledge.Once you get addicted to opium, you won't be able to get rid of it without struggling to get rid of it. However, in fact, Holmes did not contract opium addiction. He only went to the opium den to keep an eye on his enemies. Don't let anyone see this and shout that Holmes is taking drugs. Smoking opium can bring hallucinations and a sense of pleasure to people, but excessive smoking can cause symptoms such as coma, shortness of breath, hypotension, and small pupils. I still remember this description in 'Wisteria Apartments'-"...I found that her (Miss Burnett) pupils had become two small black dots in the light gray irises. She had taken opium ”. This is the characteristic of a heavy opium smoker. The pupils become smaller, so later Dr. Watson will immediately judge that "she has taken opium." After long-term opium users stop taking the drug, they may experience withdrawal symptoms such as drug craving, restlessness, tearing, sweating, runny nose, irritability, trembling, chills, chills, anorexia, diarrhea, body curling, and cramps. [Swamp Viper]·The venomous snake that killed Miss Stoner (Spotted Belt Case) Viper (Vipera russelli siamensis): commonly known as round-spotted viper, money spot, hundred-step leopard, etc. The head is triangular, the body is thick and the tail is short. There are three round spots on the back of the head, and there are three longitudinal rows of large round spots on the back of the body. A row of round spots on the back are staggered on both sides. The center of the round spot is purple brown, surrounded by black, edged with yellow and white. ferocious. The venom it secretes is mainly blood circulation poison. The swamp adder is probably the most venomous of the vipers, and a bite from one will most likely end up like Miss Stoner. People bitten by vipers often have symptoms of bleeding gums, chills, fever, heavy bleeding, purple skin, vomiting blood, difficulty breathing, and internal organ failure, and will die immediately. The only way to detoxify is to inject antivenom and quickly perform heart recovery surgery. I sincerely hope that no one who reads this post will suffer this fate. The above content is somewhat deviated from the medical theme. Let’s get back to the point and introduce some forensic knowledge about gun injuries. There are many types of gun wounds, including blind barrel wounds, through wounds, glancing wounds, spin wounds, ricochet wounds, etc. I will only introduce these types. Blind barrel wound: A wound caused by a bullet penetrating the human body and then staying in the tissue is a blind barrel bullet wound. Penetrating wounds: bullets passing through the human body can form penetrating bullet wounds. Graf wound: The bullet grazes the skin in a tangential direction, causing epidermis peeling or groove-like tissue defect. This is a graze wound. Whirlwind wound: After the bullet penetrates the skin, it changes direction due to the blocking effect of the bone, forming a curved wound tube, which is a roundabout bullet wound. Ricochet: After the bullet is fired, it hits a hard object at an angle (30--60°) and reflects in the other direction, forming a ricochet. When a ricochet hits a human body, it causes a ricochet gun injury. The above are just some medical terms. They are only used in forensic reports and are not very useful to laypeople. You can just watch and play with them.

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