How Can We Keep Healthy?- the best answer to that question is, to be the child of healthy parents income from a sturdy stock.  The nurse at the mother's breast and raise outdoors in the sunshine and fresh air, to sleep at plenty of air in the room at night.  To have a natural movement of the files once a day.  And through childhood to receive three meals a day consisting of pure wholesome food, plenty of milk, free from germs, pure water and sleep from 10 to 12 hours a night throughout childhood, depending on the age.  To play into work which will be in the air and develop the muscles gradually.  Every child should be vaccinated anytime after the six-month and repeat at the seventh year, to be done at once, in addition during an epidemic of smallpox.  It is not necessary or write for a child to have scarlet fever, measles, diphtheria, etc., as so many people think.  They are often followed by deafness, heart disease, nervous diseases and paralysis which nature never meant to inflict a child with to go through life.

Children's teeth, eyes and throat should be examined at intervals and many defects corrected.  The tonsils and adenoids (growths would stop up the nose and prevent air being breathed properly) should be removed.  Enlarged tonsils often cause deafness by preventing air from the throat reaching the ear cavity due to stopping the opening of the Eustachian tube which leads from the throat to the ear.

Children should not be taught to many branches at school.  Every school should be well lighted with plenty of fresh air.  Many of the smaller schools are now being built on open ropes of buildings in large cities or in platforms placed out of doors with just a roof overhead to protect the children.  All schools should be held in the open where possible.  There is absolutely no chance of cold that the children are warmly dressed in experiments are proven that the children are healthier, more attentive and mentally deficient where they had been in school in the open air.

This kicks off an interesting theme that I have seen throughout this section of the book as I took a sneak peak into things.  Its the concept that fresh air all by itself is important to health.  Now, I suspect that the real benefit to good health is actually the absence of pollution, which was a real problem even 100 years ago with coal soot and other contributors of new industrial run off problems.  If we could time travel, I think one of the interesting things we'd discover if we could send people back to large and small cities armed with digital cameras is that pollution was likely very rampant 100 years ago.  This was very likely a significant health problem.

That said, keeping people outside in the fresh air just for the sake of being outside in the fresh air regardless of the temperature is approximately where the science runs into pseudoscience and misunderstanding.

Additional Articles from the Book of Medicine:

• How to Destroy Existing Mosquitoes
  
  

  How to Destroy Existing Mosquitoes.-Kill every mosquito seen about the house. Every mosquito killed in the winter or spring will lessen the number of mosquitoes in the summer by thousands. Use a paddle, made of an oblong sheet of wire gauze tacked on to a strip of wood, to serve as a handle, to kill both the fly and mosquito whenever seen. One of the best means of killing female mosquitoes (as they survive from one season to another) is to begin in the winter or early spring to fumigate the air with the following mixture :—Equal parts (by weight) of carbolic acid crystals and gum camphor. Liquify the carbolic acid crystals by gentle heat, break up gum. camphor into small pieces and then pour the liquid acid slowly over the camphor. The acid will dissolve the camphor completely and the solution formed is permanent and will evaporate slightly at ordinary temperatures.
  

  This may be one of the early books on the fight to attack mosquitoes and malaria.

  To fumigate a tightly sealed room, three ounces of this liquid will suffice for 1000 cubic feet of air space. Place it in a tin over an alcohol or other lamp and in addition place the lamp on a tin waiter or old pie plate, heat and it will require about one half hour to evaporate these three ounces of liquid. This solution is death to the mosquitoes and flies. It is not poisonous to man and is not destructive to fabrics and materials, furniture, etc. It is not explosive, but is inflammable and precaution should be taken to prevent fire. Mosquitoes found upon the ceilings of bedrooms in the evening may be quickly killed by taking a shallow tin cup or lip of a tin can, tacking it to a stick and then fill it with kerosene. Place quietly under the resting mosquito which either falls into or flies against the oil and is killed. Burn Chinese punk and mosquitoes will be driven away temporarily. Equal parts of olive oil and oil of citronella applied every half hour or so to the skin of the face, neck, hands and ankles will keep away mosquitoes. This method is useful to farmers, hunters, lumbermen or laborers about woods, swamps, etc., where mosquitoes are an annoying and disease carrying pest.

• The Itch Mite
  
  

  The Itch Mite.–This parasite which afflicts man causes the condition spoken of as “Itch,” “Seven Years Itch,” “Army Itch,” “Jackson Itch,” etc. It has an oval body with spine-like projections. The female is larger than the male and measures 1-70 of an inch in length by 1-50 of an inch in width. The female causes the development and pain of the afflicted person. She burrows into the superficial skin, forming a tortuous or a straight dotted line, slightly elevated which varies from 1/8 to 1/2 inch in length.

  I wonder if they had to invest in a Bugaboo stroller after scratching this itch fifty years ago?

  This line if observed closely appears dark gray or blackish in color and is slightly more elevated at one end. The eggs are laid in this furrow and at the elevated end is usually found the female, which has perished, as a rule. It takes almost 13 to 20 days for the eggs to develop into adult mites. The young mites feed upon the tissues of the body and move about causing discomfort until they reach the surface of the skin where they mate and females start a fresh burrow and deposit more eggs.

  The Itch Mite is commonly found in the skin between the fingers, hands, folds of the wrist, arm pits, around the stomach and about the neck. It is not known as a carrier of disease, but can be dangerous to health by causing burrows in the skin and abrasions due to scratching which afford an opening for germs to enter the system of the bitten individual.

  The Itch Mite can be conveyed from one person to another by means of towels, clothing, bathing suits, etc., carelessly washed, handled, or worn by anyone afflicted with the pests.

  TREATMENT.—To destroy them, have all bed linen and clothing used by the individual infested, thoroughly boiled or baked. Treat the region of the body by taking a bath, washing first with warm water and castile soap, using a brush to thoroughly open up the burrows and expose the eggs for destruction. After this, apply an ointment,

  Sublimed sulphur…….one drachm (teaspoonful)

  Balsam of Peru…….one drachm (teaspoonful)

  Vaseline …………one ounce (2 tablespoonfuls)

  Rub in morning and evening for from two to four days and repeat at end of a week if any itching continues.

• The Pancreas, or "Sweetbread"
  
  

  The Pancreas, or “Sweetbread.”  — The pancreas, or “sweetbread,” is a single glandular organ, situated transversely across the upper and back part of the abdomen, on a level with the last dorsal spine bone.  It is of an irregular, elongated form, from six to 8 inches in length, an inch and a half in breadth, and from a half to 1 inch in thickness.  It secretes about 7 ounces daily of a slightly alkaline fluid containing the organic principle — pancreatin, which is the property of changing the starchy food into sugar.  Whilst it has this power, yet its chief work in the digestive process seems to be the breaking up of the fat globules into myriad of my new particles which mix freely with water, and thereby promote their absorption by the lacteals.

  _____

  This section definitely exhibits a lack of understanding of the workings of the pancreas.  It’s not too far off and its description and characteristic described within it are not too far off.  You can can understand where they were going with their logic based on what they were observing.  I suppose if someone were to cut open some golf balls, they might as them that the plastic white shell is there to protect the rubber bands inside from the bludgeon of the golf club.  That’s not incorrect but it’s not exactly the purpose either.