Acids, especially the native acid of vegetables, are remarkably agreeable and refreshing to all who labour under the heat, oppression, and languor, which accompany hectic complaints. It is surprising what a quantity of the juice of lemons the constitution will bear, without any inconveniency, when it is accustomed to it by degrees; and in those cases where it does not occasion pains in the stomach and bowels, or other immediate inconveniencies, it has been thought to have a good effect in abating the force of the hectic fever. I have met with two cases, since I have been last abroad, in both of which there seemed to be a quicker recovery than I ever saw, from the same symptoms. The first was that of a young lady, of about seventeen years of age, and apparently of a very healthy constitution. In bad weather, during the spring, she caught cold: this being neglected in the beginning, gradually grew worse. When physicians were at length consulted, their prescriptions seemed to have as bad an effect as her own neglect. By the middle of summer her cough was incessant, accompanied with hectic fever and flushings, irregular shiverings, morning sweats, emaciation, expectoration of purulent phlegm streaked with blood, and every indication of an open ulcer in the lungs. In this desperate state she was carried from the town to a finely situated village in Switzerland, where, for several months, she lived in the middle of a vineyard, on ripe grapes and bread. She had been directed to a milk and vegetable diet in general. Her own taste inclined her to the grapes, which she continued, on finding, that, with this diet only, she was less languid, and of a more natural coolness, and that the cough, fever, and all the other symptoms gradually abated. She seemed to be brought from the jaws of death by the change of air, and this regimen only; and she returned to her own home in high spirits, and with the look and vigour of health. The ensuing winter, after being heated with dancing at the house of a friend, she walked home in a cold night; the cough, spitting of blood, and other symptoms immediately returned, and she died three months after.