are a Contracting of the Gutts: and, for proof, So soon as the Contracting Motions alter, and are turn'd to Dilating or Expelling Actions, the Patient is at ease. But, there are several Causes that produce the _Cholick_: for, some _Cholicks_ are produced by Hot and Sharp Motions, as _Bilious Cholicks_; others from Cold and Sharp Motions, as _Splenetick Cholicks_; others from Crude and Raw Humours; some from Hot Winds; some from Cold Winds. The same some sorts of _Convulsions_ and _Cramps_ may be: but, though these several _Cholicks_ may proceed from several Causes; yet, they all agree in this, To be Contractions: for, as I said, when those Corporeal Motions alter their Actions to Dilatation or Expulsion, the Patient is at ease. But, those _Cholicks_ that proceed from Hot and Sharp Motions, are the most painful and dangerous, by reason they are, for the most part, more strong and stubborn. As for _Cholicks_ in the Stomack, they are caused by the same sorts of Motions that cause some sorts of Contractions: but, those sorts of _Cholick_ Contractions, are after the manner of wreathing, or wringing Contractions. The same in Convulsive-Contractions. CHAP. XVI. Of Shaking Palsies. _Shaking Palsies_ proceed from a Slackness of the Nerves, or Sinew strings, as may be observed by those that hold or lay any heavy weight upon the Arms, Hands or Leggs: for, when the Burdens are removed, those Limbs will be apt to tremble and shake so much, for a short time, (until they have recovered their former strength) that the Leggs cannot go, or stand steadily; nor the Arms, or Hands, do any thing without shaking. The reason of these sorts of Slackness, is, That heavy Burdens occasion the Nerves and Sinews to extend beyond their Order; and being stretched, they become more slack, and loose, by how much they were stretched, or extended; until such time as they contract again into their proper Posture: And the reason that Old Age is subject to _Shaking-Palsies_, is, That the Frame of their whole Body is looser and slacker, than when it was young: As in a decayed House, every Material is looser than when it was first built; but yet, sometimes an old shaking House will continue a great while, with some Repairs: so old shaking Men, with Care, and good Dyet, will continue a great time. But this is to be noted, That trembling is a kind of a _Shaking-Palsie_, although of another sort; and so is Weakness after Sickness: but, these sorts are occasioned, as when a House shakes in a great Wind, or Storm; and not through any Fundamental Decay. CHAP. XVII. Of the Muther, Spleen, and Scurvy.