“The Carlsbad waters (says Dr. De C.) are detrimental when there are any symptoms of inflammation, congestion, or vertigo present. If these exist on the arrival of the invalid, they must be removed before he takes the waters; if they occur during the use of the waters, these last must be immediately discontinued.” Dr. De C. observes, that these springs are detrimental in phthisis or any grade of pulmonary complaint—and that, in general, they aggravate _organic_ diseases of all kinds, and hasten their march. Here then is a rule which applies to many of the spas besides Carlsbad—namely, that the constitution should be free from inflammation, congestion, and structural changes in any organ, before the waters can be safely taken. Dropsical affections, even where no organic disease can be detected as their cause, are aggravated by the Carlsbad waters. Dr. De C. relates a melancholy instance of a nobleman who was sent there from a great distance—only to die of dropsy. In chlorotic and amenorrhœal disorders, Carlsbad waters are beneficial; not so much from the minute quantity of iron they contain, as from their stimulant and deobstruent qualities. Females ought not to use these waters at all times. A painful complaint which often presents itself at Carlsbad is _biliary calculi_. Dr. De C. thinks that the waters are almost specific in such cases. He lately attended an invalid who had come from a great distance to Carlsbad. On the third day of using the waters a prodigious number of gall-stones, of all sizes, were expelled. He has often found gravel to be expelled from the kidneys and bladder during the use of these waters; but he does not vouch for their _lithontriptic_ powers—that is, their power of _dissolving_ urinary calculi, although this quality has been attributed to them by some physicians. It is in chronic gout, especially of the wandering and misplaced kind, that the Carlsbad waters have acquired considerable renown, disputing the palm with Wisbaden itself. It is in general necessary to take some chalybeate waters, in such cases, after the course at Carlsbad is completed. It is acknowledged by Sir John De Carro, that more than one visitation to Carlsbad will be necessary in gouty affections of any standing. In the nervous tremors occasioned by quicksilver, these waters have been found very beneficial, both internally and externally. THE CARLSBAD STURM, OR CRISIS.