[p. 57]
administered. I am aware that most physicians,
like laymen, if the patient has done anything
unusual near the day of the disturbance--taken a
bath or a walk, or eaten strange food, these things
being all beneficial--nevertheless assign the cause to
one of them, and, while ignorant of the real cause,
stop what may have been of the greatest value. Instead
of so doing they ought to know what will be
the result of a bath unseasonably taken or of fatigue.
For the trouble caused by each of these things is
also peculiar to each, and so with surfeit or such and
such food. Whoever therefore fails to know how
each of these particulars affects a man will be able
neither to discover their consequences nor to use
them properly.
PART 22
XXII. I hold that it is also necessary to know which
diseased states arise from powers and which from
structures. What I mean is roughly that a "power"
is an intensity and strength of the humours, while
"structures" are the conformations to be found in
the human body, some of which are hollow, tapering
from wide to narrow ; some are expanded, some
hard and round, some broad and suspended, some
stretched, some long, some close in texture, some loose
in texture and fleshy, some spongy and porous. Now
which structure is best adapted to draw and attract
to itself fluid from the rest of the body, the hollow
and expanded, the hard and round, or the hollow
and tapering? I take it that the best adapted is
the broad hollow that tapers. One should learn this
thoroughly from unenclosed objects
i. e. objects that are not concealed, as are the internal
organs. | that can be
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