in causing the stone and gravel in the body: the original particles or principles of the stony substance called spar, which are in abundance suspended in this kind of water, must get into the flood-gates of the kidneys and ureters, (as they opine) and create great misery in a little time.
But this fear of petrefactions in living animal bodies is grounded upon neither reason nor experience; for the spar in these waters forms no petrefactions, whilst in a brisk motion, or in a temperate season, or on vegetables while they preserve their vegetating life. While there is warmth and circulation of juices, there can be no incrustation or petrefaction from the suspended stony particles. Besides, if the minims of spar are not within the spheres of sensible attraction, whilst in motion; much less are they so when mingled with the fluids of the human body: you may therefore very safely drink these limpid petrifying waters at all times, as a common fluid, if they come in your way, as the best, and most grateful or pleasant water in the world, on account of the infinitesimals, or original

leasts, of spar that are in them, in vast quantities, but infinitely small particles: and if you are sick, in many cases sure I am, they are the best of medicines. Human invention has nothing equal to them for fluxes of any part of the body, or colliquations from an acid salt. So far are they from being in the least dangerous, that in all unnatural discharges, by spitting, stool, or urine; by excessive menstrual or haemorrhoidal fluxes, in the fluor albus, diabetes, profuse sweatings; in the diarrhoea, dyfentry, or lienteria (where the springs are not quite worn out:) in ulcers of the viscera, hectic fevers, atrophy, and colliquations or night sweats, there is not any thing in physic more profitable or pleasant, to recover a patient. Let your dose, in such cases, be three half-pints of Knaresborough dropping-well in the forenoon; and before you begin to drink this water, remember to take two doses of rhubarb, to cleanse off the excrements of the first viscera. You must not drink ale, drams, or punch, during a course of these waters: and take but very little red port. You must likewise have a strict regard to diet. Let it be milk, eggs, jellies, barley-broth, chickens, kid, lamb, and the like. You must avoid all salt, sharp, stimulating things, day-sleep, and night-air: but agreeable