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The ONE and TVVENTIETH BOOK: Of Poysons, and of the Biting of a mad Dog, and the Bitings and Stingings of other venomous Creatures.
CHAP. I. The cause of writing this treatise of Poysons.
FIve reasons have principally moved me to undertake to write this Treatise of poysons, ac∣according to the opinion of the antients, The first is, that I might instruct the Surgeon what remedies must presently be used to such as are hurt by poysons, in the interim whilst greater means may be expected from a Physician. The second is, that he may know by certain signs and notes such as are Poysoned or hurt by poysonous meats, and so make report thereof to the judges, or to such as it may concern. The third is, that those Gentlemen and others who live in the country, and far from Cities, and store of greater means, may learn somthing by my labour, by which they may help their friends bitten by an Adder, mad Dog, or other poysonous creature, in so dangerous, sudden and unusual a case. The fourth is, that every one may beware of poysons, and know their symptoms when present, that being known, they may speedily seek for a remedy. The fifth is, that by this my labour all men may know what my good will is, and now well minded I am towards the common-wealth in general, and each man in particular, to the glory of God. I do not here so much arm malicious and wicked persons to hurt, as Surgeons to provide to help and defend each mans life against poyson; which they did not understand, or at least seemed not so to do, which taking this my labour in evil part, have maliciously interpre∣ted my meaning.
But now at length, that we may come to the matter; I will begin at the general division of poy∣sons, and then handle each species thereof severally; but first let us give this Rule, That poyson is that which either outwardly applied or struck in, or inwardly taken into the body, hath power to kill it, no otherwise, then meat well drest is apt to nourish it. For Conciliator writes, that the pro∣perties of poyson are contrary to nourishments in their whole substance; for as nourishment is turned into blood, & in each part of the body whereto it is applied to nourish, by perfect assimila∣tion substituted in the place of that portion which flows away each moment. Thus on the contrary poyson turns our bodies into a nature like it self and venenate, for as every agent imprints the force and qualities thereof in the subject patient, thus poyson by the immoderation of faculties in their whole nature conttary to us, changeth our substance into its nature, no otherwise then fire turneth chaff in a moment into its own nature, and so consumes it. Therefore it is truly delivered by the Antients, who have diligently pried into the faculties of natural things, that it is poyson that may kill men by destroying and corrupting their temper, and the composure and conformation of the body. Now all poysons are said to proceed either from the corrupt air, or from living crea∣tures, plants and minerals, or by any artificial malignity in distilling, subliming and diversly mix∣ing of poysonous and fuming things. Hence arise sundry differences of poysons; neither do they all work after the same manner; for some corrupt onr nature by the unmeasureableness of the manifest and elementary qualities whereof they consist, others from a specifick and occult proper∣ty. Hence it is that some kill sooner then other some; neither is it true, that all of them present∣ly assail the heart, but others are naturally at deadly strife with other parts of the body; as Cantha∣rides with the bladder, the sea-Hare with the lungs the Torpedo with the hands, which it stupe∣fieth, though the fishers rod be betwixt them. Thus of medicines, there are some which are apt pre∣sently to comfort and strengthen the heart; others the brain, as stoechas; others the stomach, as cinna∣mon: Also there are some poysons which work both wayes, that is, by manifest and occult quali∣ties, as Euphorbium; for that both by the excessive heat and the whole substance, or the discotd of the whole substance with ours, corrupts our nature. An argument hereof is, that Treacle, which by its quality is manifestly hot, infringeth the force thereof, as also of all others of an occult pro∣petry. Poysons which work by an occult and specifick property, do not therefore do it, because they are too immoderately hot, cold dry, moist; but for that they are absolutely such, and have that essence from the starrs and celestial influence, which is apt to dissolve and destroy the strength of mans body, because being taken, but even in a small quantity, yet are they of so pernici¦ous a quality••; that they kill almost in a moment. Now poysons do not only kill being taken into the body but some being put or applied outwardly; neither do venomous creatures onely harm by their stinging and biting, but also by their excrements, as spittle, blood, the touch and breath.