The air of
Arizona is so dry and evaporation so rapid that an increase in
perspiration is scarcely noticeable except when it is confined by
impervious clothing. The disagreeable feeling of wet clothes
which accompanies profuse perspiration in a damp climate is
changed to an agreeable sensation of coolness in a dry one.
The atmosphere of Arizona is not only dry but also very
electrical, so much so, indeed, that at times it becomes almost
painful. Whenever the experiment is tried, sparks can be
produced by friction or the handling of metal, hair or wool. It
affects animals as well as man, and literally causes "the hair to
stand on end." The writer has on various occasions seen a string
of horses standing close together at a watering-trough, drinking,
so full of electricity that their manes and tails were spread out
and floated in the air, and the long hairs drawn by magnetic
attraction from one animal to the other all down the line in a
spontaneous effort to complete a circuit. There are times when
the free electricity in the air is so abundant that every object
becomes charged with the fluid, and it cannot escape fast enough
or find "a way out" by any adequate conductor. The effects of
such an excess of electricity is decidedly unpleasant on the
nerves, and causes annoying irritability and nervousness.
The hot sun sometimes blisters the skin and burns the complexion
to a rich, nut-brown color, but the air always feels soft and
balmy, and usually blows only in gentle zephyrs. The air has a
pungent fragrance which is peculiar to the desert, that is the
mingled product of a variety of resinous plants. The weather is
uniformly pleasant, and the elements are rarely violently
disturbed.
In the older settled sections of our country, whenever there is
any sudden or extreme change in the weather of either heat or
cold, wet or dry, it is always followed by an increase of
sickness and death. The aged and invalid, who are sensitive and
weak, suffer mostly, as they feel every change in the weather.
There is, perhaps, no place on earth that can boast of a perfect
climate, but the country that can show the fewest and mildest
extremes approaches nearest to the ideal. The southwest is
exceptionally favored in its climatic conditions, and is
beneficial to the majority of chronic invalids.
Atmospheric pressure is greatest near the earth's surface, and
exerts a controlling influence over the vital functions.
Atmospheric pressure is to the body what the governor is to
the steam engine, or the pendulum to the clock. It regulates
vital action, insures safety and lessens the wear and tear of
machinery. Under its soothing influence the number of
respirations per minute are diminished, the heart beats decreased
in frequency, and the tired brain and nerves rested.
