The Pauline was only discovered in 1828, at a depth of fourteen feet. The quantity it discharges is prodigious. The taste is extremely agreeable and refreshing. It is one of the mildest and purest chalybeates that is known. It is very easy of digestion, and operates very gently on the bowels. By quickly amalgamating itself with the blood, it is rapidly diffused through every organ and tissue of the body, producing favourable changes there, and proving a general restorative. The vigor which it inspires is remarkable from day to day—and the change of complexion from pale to rosy, is equally surprising. The waters of Schwalbach, generally belong to the class of æthereal or volatile chalybeates—very agreeable to the palate, and producing a slight and temporary feeling of intoxication. Their chief ingredients are steel and carbonic acid, in such a state of combination as gives the iron a great efficacy in consequence of its minute solution in the waters. “At the same time (says Dr. Fenner,) that this spring causes agreeable sensations in the palate and stomach, it excites the muscular fibres and the nerves of the whole alimentary canal, into a state of activity—invigorates the circulation—corrects the secretions—increases them when defective—and gives new vigor to the whole process of digestion and nutrition. In doing this it enlivens the spirits, and imparts tone to the intellectual functions.” The indications for using the Schwalbach chalybeates, according to the same authority, are the following:— 1. In atony or debility of the stomach and bowels, whether from natural constitution, or from excesses previously committed—whether isolated from other complaints, or connected with affections of other organs, as the liver, spleen, &c. This atony eventuating in difficult, painful, or imperfect digestion, with all its consequences, is remedied by the waters. It is in these kinds of complaints that the Stahl-brunnen is chiefly employed—“the Wein-brunnen being too strong, and the Pauline too volatile.” Strict regimen, in such cases, is indispensible. 2. When the blood is in a watery or deteriorated condition—when it is deficient in red globules—and consequently not fitted to support the energies of the muscles, the tone of the nerves, or the functions of the great organs of assimilation, secretion, &c. It is in such cases that the chalybeates produce their most brilliant and unequivocally good effects. Females, from the delicacy of their constitutions, the effects of civilization, and certain disorders to which their sex subjects them, are the peculiar votaries of these springs. Hence those affected with chlorosis—with hæmorrhages—with menorrhagia—hysteria—obstructions, &c. are seen flocking to Schwalbach, there to regain strength, colour, and health. “Quels que les noms des maladies qui se developpent, ici le malade peut esperer, avec raison, d’etre gueri. Quelques semaines suffisent souvent pour regenerer ses humeurs d’une maniere sensible.”