Composition of the Chest-- the chest is composed of bones, cartilages, and ligaments.  Its natural form is that of a cone diminishing upward; and it affords lodgment of the heart, lungs and large blood vessels.  Its walls are formed posteriorly by the seven dorsal bones of the spinal column, and the ribs as far as the angle, the sides by the body of the ribs, and front by the ribs, the costal cartilages and the breast bone.

This section is about as exciting as you'd expect from a medical textbook.  It's almost unique in the fact that it has no items comments or issues that don't seem like they would appear in a medical textbook.  Some of the descriptions seem rather basic, but even that's a bit of a stretch to find something unique about this section.

Additional Articles from the Book of Medicine:

• How to Destroy Bed Bugs
  
  

  How to Destroy Bed Bugs.– Spray with pure spirits or crude turpentine or benzine by using an ordinary nose and throat atomizer which can be bought in a drug store, all brass or wooden beds after scalding where possible with hot water, spray the crevices of floor, back of picture frames and where a house is “alive” with the pests repaper and paint rooms.

  These small little bugs are very difficult to see even when you know what you are looking for, dozens of them or their eggs could fit on a micro sd card that would go in a modern cell phone.

  Spirits of turpentine will kill where carbolic acid has failed. After each spraying, watch for the bedbugs as those which are not destroyed will hasten to escape and can be killed. Remember benzine and turpentine are inflammable and poisonous. No lights should be permitted in the rooms during or immediately following the use of these drugs. When articles cannot be sprayed, as books, etc., seal up the room and burn a sulphur candle. Place sulphur candle in a tin cup and place cup in a tin or metal pie plate containing water.

• The common fly (Musca domestica)
  
  

  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.

• How We Walk
  
  

  How We Walk.- the foot is in raised from the ground and swung forward into true pendulum fashion.  The leg in so doing becomes flexed at the knee joint, and considerably shorter, and the whole weight of the body is transferred to and supported by the leg and foot, which is planted firmly on the ground.  The leg in the foot which was swinging in the air is now brought down to the ground, the muscles passing through changes just the reverse of those employed in raising it.  Planting this foot firmly on the ground, to prevent the body from failing, we raise the other foot, swing it forward, like describing the same movements as before, repeating the process alternatively with each leg.  These movements constitute the act of walking; the complexity of which is fully illustrated by the consultative machinery employed for its performance, as we’ve seen in the beautiful place join the wonderful unskillful arrangements of the bones and muscles of the leg.

  This description sounds slightly unscientific.  I picture a man standing there and slowly lifting his leg while the author slowly writes in perfect form each word describing the movement, but the entire time failing to recognize the chaotic nature of walking or running which is at best an exercise in repeated controlled falling.  Its much easier today to analyze true movement with the benefit of cameras and slow motion.  The author might not even be suited for practicing medicine today and could possibly be better suited to accounting or banking working with mortgage lenders.