The Eardrum.-on the back of this flap is seeing a strikingly natural representation of the middle ear, the tympanum or drum, as it is frequently called. For the bottom of the tympanum is observed the Eustachian tube, through which is conveyed air from the pharynx to the middle ear. Across this chamber is seen stretched three very tiny, Cingular phones, which, from their shape, or called a hammer, the ample and the states. These delicate bones are connected together, one by ball and socket joint, the other by a hinge joint and by ligaments, and are moved by small muscles; they serve to convey the wave sounds across the tympanum cavity to the internal a year.

There is that crazy word again, tympanum.  In architecture, I believe that refers to an arch or an arch system.  I have a feeling the author looked it up and couldn't stop using it, like some desperately needing addiction treatment repeats a phrase over and over again without any rhyme nor reason.

Additional Articles from the Book of Medicine:

• Health
  
  

  Health.-Disease can be prevented by the individual doing everything in his power to keep in the best physical condition.  Disease is a common enemy of all of us, waiting to destroy, but nature is in league with us if we obey her laws.  With a normal body and pureblood should the invader arrived, the fight is on our side.  But once the body is weakened by heredity as a result of our parent’s or forefather’s neglect of the body, through the abuse of alcohol, tobacco or immoral living, lack of exercise, over eating and loss of sleep, overworked or lack of work or improper food, then will the soil be fertile for the planting of the germs of disease.  When exposed and once planted the flight will be in their favor, as the rundown body will not have sufficient vitality to overcome the invader and sickness and death will result.

  Its an interesting perspective that the author offers up about the abuse of alcohol and its impact on babies.  This is something that is well documented today with fetal alcohol syndrome, but somewhat remarkable that they made the link 100 years ago.

  Its remarkable, but it might also point to the direction of science and how unsubstantiated beliefs of 100 years ago, pushed the logical research in one direction or another.  Hypothesis followed by experiment to result in a proven rule or dismissal or refinement of the hypothesis.  But it requires that first notion and direction to research.  Similar things can be seen in the evolution of other areas of science from airplanes to vacuum cleaners and Ladybug steam cleaners.

• Air and Gases in Water
  
  

  Separating substances from liquids a hundred years ago was still a novel chore and not even as easy as a car insurance comparison is today.

   

  Air and Gases in Water.-A considerable amount of air generally exists in water, and is taken up by the gills of fishes, assisting them to accomplish the proper aeration, or rather oxygenation, of their blood. The air usually mingled with water may be expelled by boiling, but is absorbed again if the boiled water is agitated with access of the atmos­phere.

   

  Now, that particular segment doesn’t make a great deal of sense in the grand sense of things, but it would appear that the author is trying to talk about the purification or the impurities that can be found or removed from water.

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