This disease is sometimes cured spontaneously. The simple force of nature, acting also, perhaps, in consequence of favorable circumstances as to air, exercise, diet, clothing, occupation, etc., is often sufficient to effect a cure. Menstruation is brought on, and thus the individual becomes well; but in other cases the affection is of a very obstinate nature, and leads to disease of some important organ, as the womb, bowels, lungs, etc., and ends at last in death. Chlorosis has been sometimes mistaken for tubercular consumption. When the patient has been cured, it has been said she was cured of that disease. Thus it is that more persons are said to be cured of this dreadful malady than actually have been. Chlorosis, as a general fact, is by far oftener curable than consumption is. It is, in fact, generally curable if taken in season, which, alas! cannot be said of that most formidable disease, consumption of the pulmonary organs. _Causes._—The _causes_ of chlorosis are as numerous as the causes of depraved health generally. Any thing which tends to lower the tone of the system generally, during the period at which chlorosis ordinarily comes on, may act as a cause, either directly or indirectly, of the disease. I will here give you a case which may serve to throw some light on the subject. A physician was called to visit a young lady of the city of New York, of a wealthy family, in which, the mother being present, something like the following conversation occurred: DOCTOR.—Well, Miss, how are you to-day? PATIENT.—Not very well, I am sorry to say. D.—Do you attend school at present? P.—Yes; I am at Mrs. ——’s seminary, in —— street. D.—How long have you been there? P.—Four years, including now and then a vacation of a few weeks. D.—What have been your studies? P.—Composition, Rhetoric, Mathematics, Philosophy, Chemistry, Botany, French, Spanish, Music, and Drawing. D.—Do you like your studies? P.—Yes; some of them very much. D.—How do you like the study of English composition? P.—I can hardly say; we have to do every thing in French; address our teacher in French when we go to school in the morning; speak French in our exercises; in short, it is nothing but French all day. D.—On the whole, you say you like your studies? P.—Yes, when I am well; but latterly I have been so ill and low-spirited I could not enjoy any thing. I like study when I am able to perform it—like it very much. I used to succeed well; but latterly I am discouraged, and do not accomplish any thing at all. D.—Well, now let us know all about your health, and see if we can find out what the matter is, and what it is proper to do. Here you have a fine, airy residence, an abundance of the best things to eat and drink, and to wear; good baths, good walks, and every thing about you to make you happy and comfortable. MOTHER.—She has never been regular, doctor, in her whole life. D.—Does she take her regular baths?