[57] It is a little remarkable that Dr. Granville scarcely makes any allusion to this reactive process so conspicuous in the Kissengen waters—and which is dwelt upon by the writers on all the energetic spas of Germany. It is by far the most important phenomenon which medicinal waters present, and requires the most vigilant attention. I have not the least doubt that it is owing to the want of light aperient alteratives taken over night, by which the biliary and other glandular secretions are kept in a state of activity, corresponding with the action kept up on the bowels by the waters.—_See the Section on Carlsbad._ [58] It would have been well if the late Duke of Nassau had observed this rule—or rather if he had avoided these baths entirely.—_J.J._ [59] By the way, those visitors, who merely pass a day or two at Kissengen, without any intention of taking the waters, have reason to complain of the tax imposed on them by the King of Bavaria. When the “reckoning” comes in, they find two florins for each person in the party charged by the master of the hotel. I believe, however, that this is an imposition of the hotels, and that four or five days’ residence are allowed, before the tax is due. [60] It may be proper to state that, in a more recent analysis by Professor FROMMSDORFF, some other ingredients were discovered, although the aggregate quantity of saline matters was 34 grains, as above. The new matters were very minute quantities of oxide of manganese—carbonate of lithion—carbonate of strontian—and phosphate of magnesia. [61] The Baron suggests the more frequent application of this gas to certain complaints of both sexes which are regarded with no small anxiety by both parties. _Verbum sat._ [62] Dr. Clarus, Dr. Granville, and others state that the skin exhales an acid odour, and even feels salt to the tongue for several hours after leaving the bath. This I did not perceive in my own case at all. [63] There is another source in the forest, ten minutes walk from the Kreuzbrunn, which contains double the quantity of solid materials found in the Carolinenbrunn, termed Waldbrunnen. [64] Heidler, p. 334. [65] The apparatus at Marienbad are admirably constructed, both for safety and efficacy. The hole in the lid of the bath embraces, by the aid of a handkerchief, so well the throat, that no gas escapes, while the patient suffers no difficulty of breathing. The gas enters by a tube at the bottom of the bath, and the superfluity is carried off by several others that enter near the top. Some covering is proper over the part exposed to the _current_ of the gas from the pipe, to prevent taking cold—as the clothes do not, in the slightest degree, diminish the action of the gas on the body or members, provided they are light and thin. [66] Lobkowitz. Ode to the Sprudel—nearly 300 years ago. [67] The route by the Elbe, from Hamburg, through Dresden and Saxon Switzerland, will now render the journey from London easy.