CONFERENCE CX. I. Of Mineral Waters. II. Whether it be better to give than to receive? (Book 110)
AS the goodness of Common Waters is judg'd by their having [ I] neither colour, nor smell, nor taste,* 1.1 and the least weight that may be, wanting all other virtues besides to cool and moi∣sten; so, that of Mineral or Medicinal Waters depends upon the qualities of the Minerals wherewith they are impregnated, and by means whereof they purge and alter the Body; Humidity being easily susceptible of extraneous qualities, and preserving the same best in a dense and gross subject, as Water is. These Waters are either cold or hot; the former are drunk, and the latter serve for Bathing; as that of Aix in Germany; of Plom∣bieres, in Lorrain; of Bourbon, in Bourbonnois; of Bagnieres and Barege, in Gascony; of Balleruc and Barbotan, in Languedoc; of Acqs and Tersis, neer Bayonne; and abundance of other hot Baths caus'd by Subterraneous Fires. Of cold Waters, some are acid and pungent to the taste, as the Vitriolate, such as those of Spa in the Country of Liege, and of Ponges in Nivernois: Others are sharp and rough; as those Springs of Forges and Montdor neer Rheimes, not long since found by Sieur de la Framboisiere; those of Chasteau Thierri, of la Herse neer Bélesme, whose acidity likewise argues something of Vitriol; and divers others, disco∣ver'd daily by experience. Some are found heavy, stinking, fat, and impure; other leight, pure, clear, and sweet. Some are salt or brackish; of colour reddish, green, black, and otherwise different, according as these Waters are variously mix'd; where∣in Minerals are contain'd either in substance and their grosser parts, or else only their Spirits and subtiler parts, so well blended as that there appears no extraneous Body at all; which mixtion depends on the Nature of Minerals, some whereof are never perfectly mix'd with Water, by reason of their hardness; others, though soft and liquid, mix only confusedly, as oyly Bodies: Others mix easily; as Spirits, in regard of their tenuity; and Salts, which melt in the Water.
The Second said, That in this matter Experience is rather to be consulted than Reason, which falls short in the examen of