As to extraordinary Efforts of Nature, to pass by what happens upon a sudden Surprize, Fear, Passion, or the like; it is certain, that Torture will raise the Spirits for some time very much, and there are as great Effects follow upon Irritation, which does not come up to the perfect Notion of Torture. What wonderful Effects do we see produc’d by strong Emeticks given by Surgeons in some Cases of the Limbs and extreme Parts? Where a Person so griev’d has oftentimes a robust Constitution and perfect Health, there the Medicines, tho’ given inwardly, cannot be suppos’d to act after the common manner of Alteratives, by passing into the Blood, by the Spirituousness of their Parts, or the like; for the Person being in Health needs no Alteration to be made in the Blood, and other Juices, which are as good as they can be desir’d to be; but by the Irritation of the Fibres in the Ventricle, the Spirits are rais’d to the highest pitch they are capable of, and brought to communicate that Elasticity to the whole Body, all the Springs of Life are wound up, all the Pumps of Nature (if I may so speak) set a playing, and by these means the Agony is extended to the extreme Part affected, and the Matter fixt there is attenuated and brought to flow, that it may be absorb’d by the Blood, and discharg’d in the Circulation; Nay, we may take notice of the great Power of a more gentle Irritation of those Fibres in those weaker _Hysterical_ People, whose Spirits are of so fine a Make, or so scatter’d and weakened, that they can’t long bear Fasting, without very troublesome Symptoms following upon it, for they, we may perceive, are in a sense strengthen’d at those times that the Contents of the Stomach happen to be so rarifi’d, as to cause a gentle _Ægritudo_, a lingring Sickness and Nauseousness, tho’ not sufficient to cause ’em to vomit, for they shall then dispense with the want of that Food, without which at other times they could not possibly subsist with any tolerable Ease, and find themselves as strong and as free from their Tremors, Shiverings, and other ill Symptomes, as if they had eat and drank plentifully; and likewise during that Sickness the Salts shall come off plentifully in the Urine, which will then recover its proper Colour, tho’ it was before as limpid as common Water; from hence it is manifest, that the Animal Spirits may be made to expand, dilate, or in some ways act upon themselves, without the encreasing their quantity by such internal Medicines as may be suppos’d to be converted into their Substance.