The common fly (Musca domestica).- the only way to prevent the flight curing diseases to destroy history in place, keep them out of the home, etc., when developed, by screens and swat or catch by flypaper, etc., everyone seen in a room.

Houseflies are a danger to human life.  Airborne filth, feed upon garbage, sewage waste matter of all kinds.  They carry germs on the pro-business of their bodies, and a single flaw is known to have carried as many as 350,000 germs and given them off into the liquid food in which it was floating.  They also carry numerous germs inside their bodies which they convey to food, etc., and their vomit and all matter.

Flies can carry disease germs of typhoid fever, consumption, diarrhea, dysentery and other diseases from a sufferer to you.  They come in contact with your food, milk, water, etc., you're sleeping child, or a light on an open wound, direct from the garbage can, because the door, this bit industry, etc., from decaying animal and vegetable matter and from the sick room.  Thus every individual should do everything possible to aid the physician, city and state and destroy these known carriers of filth and disease and thereby prevent sickness, due to carelessness and indifference by permitting flies to breathe and live.

If you consider the tone of this particular section, you would think that the housefly was the Swiss Army knife of disease carriers in the Western world.  In fact today we understand their purpose and the world a little bit better, but that doesn't mean that they should be entirely permitted to run amok.  Typically the presence as a result of some other item that has started to decay in the area and attracted flies.  The presence of this item sometimes can be more dangerous than the flight itself, but the fly can definitely spread that around once the process is started.  In their defense there are some practical uses for utilizing flies or even sterile I'll maggots to help clean items from time to time.

Additional Articles from the Book of Medicine:

• Diarrhea and Dysentery from Impure Water
  
  

  Diarrhea and Dysentery from Impure Water.  — the instances of outbreaks of these two diseases from contaminated water supply are very numerous, and probably most persons can recall examples of this kind.  The impurities which produce diarrhea and dysentery are suspended earthy matters, such as are found in most river waters after a rain; suspended animal and vegetable material; salty thing chlorides of Lyme and Magnesia, and nitrate of ammonia and of lime.  Besides the numerous outbreaks traceable to direct sewage contamination, there are several instances recorded of indirect poisoning the water supply from this source, as in the following curious case.

  Just as a note about the style of writing or documentation, this paragraph seems to be unnecessary as a stand alone topic.  Instead it is basically a transition paragraph, yet the author chooses to use it as a stand alone sub topic instead of just using it to work his way from one topic to a very slight tangent in the next topic.  This would again seem to reflect the author’s possible motivation for not only being paid by the word but also with a stipend for important bolded topics.  This surely does not seem to be practical like following a guide on replacing coilovers in a car or fixing a plumbing problem, and it must have driven some readers nuts as they used this book in semi-emergencies looking for the answer to serious problems only to be distracted by useless sections like this.

• THE HEART AND ITS WONDERS – What the Blood Is
  
  

  THE HEART AND ITS WONDERS.
  What the Blood Is.-The blood — the pabulum of life — has not inaptly been termed “Liquid Flesh.” But it is more than that, since it contains materials so essential and so requisite for the building up and repair of every organ tissue of which the body is composed. The blood is the liquid by means of which the circulation in the body is carried on; it permeates every note and corner of the system, and is composed of a pen, colorless fluid, the plasma, filled with red discs, so small, flat and thin that it requires 3,500, placed side by side, to measure 1 inch, and no less than 18,000, placed one upon the other, to make a column 1 inch in height. These discs are continually forming and as constantly dying.

  This section started off very strange with the reference to liquid flash, I think the author would have been wise to describe her point out this reference. As were only 50 pages into the book, I have the suspicion that there are going to be many very peculiar quoted references to sources that we will never know.

  Than the author goes into his rapture about the human body and emotions of being in awe of the blood. That was somewhat to be expected.

  Then we got to something interesting as they started to talk about the red discs. I suspect he’s referring to red blood cells, and the viewer perception that they were discs as they looked at it through a microscope. It probably didn’t really know what they were looking at yet and they could only get a descriptive name.

• The Ribs
  
  

  The Ribs.– the ribs are twenty-four in number, arranged in pairs, well moneyed set in the chest.  At the back they are fastened to the spine, confront the seven upper pairs are tied by cartilages to the breast bone, three are fastened to each other in the cartilage above, and two, the floating ribs, are loose.  The long, slender ribs give lightness; their arched form confers strength, and the cartilages and parts of elasticity; thus the three most essential prerequisites of the chest for the protection of the delicate organs contained within this cavity are secured, whilst the freest motion in respiration is ensured.

  This section starts to get back to some of the vocabulary that is less known today.  Words such as “whilst” and “freest” sound like something out of a bad movie about pilgrims.  In general several other sentences in this section have what I would refer to as emotional connotations that are descriptive but are not necessarily accurate and definitely do not have the cold medical sound that you would expect in a text today.  In other words it doesn’t sound very scientific.