Between the years 1850 and 1860, homoeopathy assumed a good deal of prominence in the city of New York. Many of the leading families during this period turned their backs on the regular practitioners,—the “Allopaths,” as they were then frequently called,—and confided themselves and their maladies to the care of members of the new school. This naturally led to much bitterness of feeling between the two groups of physicians, just as had happened at an earlier date in the larger towns of England and Scotland; and this condition of things lasted for at least twenty years. Hostile action on the part of the county and state medical societies proved of very little use in diminishing the popularity of the new method of treating diseases; and so it was finally decided to withdraw all further opposition to the new sect and to see what an attitude of indifference and the stopping of all persecution would accomplish. Thanks largely to this wise and sensible policy, homoeopathy gradually lost its short-lived ascendancy, and the more sensible members of the community returned to their former allegiance. What I have said in regard to the rise and fall of homoeopathy in New York is, I am confident, true in a general way of its fate in most of the other large cities of the United States, but I am personally familiar only with the conditions that prevailed in my native city. I wish that I might speak with a larger measure of authority in regard to the causes that led to the favorable reception of this new sect in New York, but I am not able to do this, and I doubt whether anybody among my contemporaries is able to do much better than merely to suggest some of the more obvious causes which favored the popularity of the new school of practice. Among such causes I may mention the fact that in those days the practitioners of the regular school were in the habit of prescribing drugs in large doses and with very little effort to render them palatable. Take, for example, senna tea, of which bad-tasting medicine the patient was expected to take a large teacupful shortly after the early crowing of the cock; and if, a day or two later, a repetition of the same dose was ordered by the attending physician, can anybody wonder if the remedy was quickly pronounced by the patient much worse than the disease? Experiences like the one just narrated were by no means uncommon, and, as a consequence, many families did not hesitate to transfer their patronage to a class of physicians who never prescribed any remedy that had a bad smell or taste or that caused the slightest bodily discomfort. Then, beside, it is a well-known fact that, during the period now under consideration, the regular practitioners had, in not a few instances, been guilty of prescribing therapeutic measures which actually inflicted harm. Such, for example, were the giving of mercurial preparations in too large doses, the too frequent resort to bloodletting, etc. For all these reasons, it is not at all