The waters of Carlsbad are used for the removal of a great variety of disorders, but particularly such as are connected with indigestion. They are likewise used in obstructions of the bowels, and diseases of the kidneys. About five pints, divided into fourteen portions, are, on an average, drunk by each individual every day. The Sprudel spring is better than that of any mineral waters which are employed medicinally. It requires to be considerably cooled before it can either be used as a bath, or drunk. Its heat is such that it is occasionally employed, in place of water artificially heated, for several domestic purposes, such as the scalding of fowls and hogs, the feathers and hair of which it immediately loosens. Several hundred pounds weight of Glauber’s salt are annually prepared from this water. 6. SIMPLE SALINE WATERS. 289. _SEDLITZ WATER is very salty and bitter. It contains a small portion of chalk, some sulphat of lime (192), carbonat of magnesia, muriat of magnesia, and a very great proportion of Epsom salt (199), to which its bitter taste and medicinal virtues are principally attributed._ The spring for which the village of Sedlitz, in Bohemia, has long been celebrated, was, for many years, wholly neglected by the inhabitants, on account of the bitter and nauseous taste of its water, which rendered it unfit for nearly all domestic purposes. Its virtues, as a medicine, were first brought into notice about the year 1721, by Hoffman, the celebrated Prussian physician. This water is considered a valuable remedy in cases of indigestion, for removing scorbutic humours, and in several other complaints. 290. _EPSOM WATER is saline, and partakes, in some degree, of the nature and qualities of Sedlitz water, but it is by no means so powerful. It is transparent and colourless; and, when first taken into the mouth, has scarcely any taste, but it leaves a decidedly bitter and saltish taste on the palate._ _This water contains sulphat of magnesia, or Epsom salt (199), selenite, and a small portion of chalk._ Although the Epsom waters, on account of their deficiency of strength, are now scarcely ever employed in medicine, yet they were among the first saline cathartic springs which were brought into use in this country. The salt to which they owe their property, and which is known throughout Europe by the name of Epsom salt, was, for many years, prepared almost exclusively from them and from Sedlitz water. But the quantity which they supplied was found so very inadequate to the increasing demands for this salt in medicine, that Epsom Salt has, for some time past, been manufactured from sea water. Epsom water, if closely corked, may be kept for several months without injury: but, otherwise, it soon becomes putrid. The spring from which it issues is situated about half a mile from the town of Epsom in Surrey, sixteen miles south of London.