otions inverted, the lymphatics of the
stomach, which are most strictly associated with it, invert their motions
at the same time. But the more distant branches of lymphatics, which are
less strictly associated with it, act with increased energy; as the
cutaneous lymphatics in the cholera, or iliac passion, above described. And
other irritative motions become decreased, as the pulsations of the
arteries, from the extra-derivation or exhaustion of the sensorial power.
Sometimes when stronger vomiting takes place the more distant branches of
the lymphatic system invert their motions with those of the stomach, and
loose stools are produced, and cold sweats.
So when the lacteals have their motions inverted, as during the operation
of strong purges, the urinary and cutaneous absorbents have their motions
increased to supply the want of fluid in the blood, as in great thirst; but
after a meal with sufficient potation the urine is pale, that is, the
urinary absorbents act weakly, no supply of water being wanted for the
blood. And when the intestinal absorbents act too violently, as when too
great quantities of fluid have been drank, the urinary absorbents invert
their motions to carry off the superfluity, which is a new circumstance of
association, and a temporary diabetes supervenes.
16. I have had the opportunity of seeing four patients in the iliac
passion, where the ejected material smelled and looked like excrement. Two
of these were so exhausted at the time I saw them, that more blood could
not be taken from them, and as their pain had ceased, and they continued to
vomit up every thing which they drank, I suspected that a mortification of
the bowel had already taken place, and as they were both women advanced in
life, and a mortification is produced with less preceding pain in old and
weak people, these both died. The other two, who were both young men, had
still pain and strength sufficient for further venesection, and they
neither of them had any appearance of hernia, both recovered by repeated
bleeding, and a scruple of calomel given to one, and half a dram to the
other, in very small pills: the usual means of clysters, and purges joined
with opiates, had been in vain attempted. I have thought an ounce or two of
crude mercury in less violent diseases of this kind has been of use, by
contributing to restore its natural motion to some part of the intestinal
canal, either by its weight or stimulus; and that hence the
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