A Mechanical Account of Poisons in Several EssaysMead, Richard
Science
A Mechanical Account of Poisons in Several Essays
Mead, Richard
Poisons -- Early works to 1800; Venom -- Physiological effect -- Early works to 1800
But be this as it will; The Alterations which _Wepfer_ observed the
Roots of _Œnanthe_ to make in the Body, were a Violent Pain and Heat
in the Stomach, Terrible Convulsions, with the Loss of all the Senses,
Distorsion of the Eyes, and flowing of Blood out at the Ears, the Mouth
so fast shut that no Art could open It, Efforts to Vomit, but nothing
thrown up, frequent Hick-Coughs, with a great Distension and Swelling,
especially at the Pit of the Stomach; and when Death had concluded the
Tragedy, a continued Running of green Froth at the Mouth.
_Stalpart van der Wiel_ gives Us the like account of Two Persons kill’d
at the _Hague_ by the same _Roots_ (144).
In a _Dog_, who for Experiment’s sake died by this _Poison_, The
Stomach when opened was found quite _Constringed_, and shut up at
both _Orifices_, Its inward Surface red, with livid Spots here and
there; The Intestines were empty; only the _Rectum_ contained a little
greenish _Mucus_.
Thus it appears, that this Plant consists of Hot, Acrious and Corrosive
Parts, which by Rarefying the Juices of the Stomach, and Wounding
Its Nervous Membrane, are the Cause of all those Disorders which do
immediately follow.
For upon the Sense of a violent _Irritation_ and _Pain_, the Fluid
of the Nerves is presently in large quantities determined to the
Part affected; and this, if the _Stimulus_ be not over great, will
be only to such a Degree as is sufficient, by contracting the Fibres
of the Stomach, and Muscles of the _Abdomen_, to throw off the Cause
of the Disagreable _Sensation_; but the uneasie _Twitching_ being
too terrible to be born, the Mind, by a kind of surprize, does with
_Haste_ and _Fury_ as it were Command the Spirits thither; Thus the
Business is over-done, and the Action of the Fibres becomes so strong,
that the Orifices of the Stomach are quite closed; so that instead of
discharging the Noxious Matter, The _Torment_ is made greater, and the
whole _Œconomy_ put into Confusion.
This forcible Contraction of the Muscles was the Reason that one of the
Children which _Wepfer_ saw, made _Urine_ in the midst of the Agony, to
the height of Five or Six Foot, with a strength and violence Surprising
to the Spectators.
Nor is it any wonder, if in these _Circumstances_ all Sense be lost,
Blood gush out at the _Ears_, _Nostrils_, &c. the Parts being all
torn and broke by the Violence of the _Convulsions_; which tho’ they
began in the Muscles of the Belly, must at last prevail in the Members
too, till the whole Fabrick is shock’d and overturn’d; and some of
the _Corrosive Salts_ perhaps getting into the Blood, and by the
Rarefaction of It Distending the Vessels, The Membranous Coats of which
being already overstretched, will the more easily give way, and let out
their Fluid.
Public-domain text, read in full here on John Shaqi.
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