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Page 21
BONE contains cartilage, gelatine, fat, and the salts of lime, magnesia,
soda, &c., in combination with phosphoric and other acids.
CARTILAGE consists of chondrine, a substance somewhat like gelatine, and
contains also the salts of sulphur, lime, soda, potash, phosphorus,
magnesia, and iron.
BILE is made up of water, fat, resin, sugar, cholesterine, some fatty
acids, and the salts of potash, iron, and soda.
THE BRAIN is made up of water, albumen, fat, phosphoric acid, osmazone,
and salts.
THE LIVER unites water, fat, and albumen, with phosphoric and other acids,
and lime, iron, soda, and potash.
THE LUNGS are formed of two substances: one like gelatine; another of the
nature of caseine and albumen, fibrine, cholesterine, iron, water, soda,
and various fatty and organic acids.
How these varied elements are held together, even science with all its
deep searchings has never told. No man, by whatsoever combination of
elements, has ever made a living plant, much less a living animal. No
better comparison has ever been given than that of Youmans, who makes a
table of the analogies between the human body and the steam-engine, which
I give as it stands.
ANALOGIES OF THE STEAM-ENGINE AND THE LIVING BODY.
_The Steam Engine in Action takes_:
1. Fuel: coal and wood, both combustible.
2. Water for evaporation.
3. Air for combustion.
_And Produces_:
4. A steady boiling heat of 212� by quick combustion.
5. Smoke loaded with carbonic acid and watery vapor.
6. Incombustible ashes.
7. Motive force of simple alternate push and pull in the piston, which,
acting through wheels, bands, and levers, does work of endless variety.
8. A deficiency of fuel, water, or air, disturbs, then stops the motion.
_The Animal Body in Life takes_:
1. Food: vegetables and flesh, both combustible.
2. Water for circulation.
3. Air for respiration.
_And Produces_:
4. A steady animal heat, by slow combustion, of 98�.
5. Expired breath loaded with carbonic acid and watery vapor.
6. Incombustible animal refuse.
7. Motive force of simple alternate contraction and relaxation in the
muscles, which, acting through joints, tendons, and levers, does work of
endless variety.
8. A deficiency of food, drink, or air, first disturbs, then stops the
motion and the life.
Carrying out this analogy, you will at once see why a person working hard
with either body or mind requires more food than the one who does but
little. The food taken into the human body can never be a simple element.
We do not feed on plain, undiluted oxygen or nitrogen; and, while the
composition of the human body includes really sixteen elements in all,
oxygen is the only one used in its natural state. I give first the
elements as they exist in a body weighing about one hundred and fifty-four
pounds, this being the average weight of a full-grown man; and add a
table, compiled from different sources, of the composition of the body as
made up from these elements. Dry as such details may seem, they are the
only key to a full understanding of the body, and the laws of the body, so
far as the food-supply is concerned; though you will quickly find that the
day's food means the day's thought and work, well or ill, and that in your
hands is put a power mightier than you know,--the power to build up body,
and through body the soul, into a strong and beautiful manhood and
womanhood.
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