potencies; and others, as I have shown, to no potencies at all.
From a circular, issued not long since, by a celebrated homœopathic apothecary at Brooklyn, N. Y., the following extract is taken.
"Sir:—Permit me to call your attention to a subject of great interest to every scientific homœopathist. Some twelve years have now passed since the first introduction into this country of the so-called high potencies. They were vouched for at the time by Boenninghausen, even then regarded as authority, in the following words:—
"'Several practical physicians of the highest order have ascertained, by a number of the most careful experiments, that the high dynamizations, such as 200, 400, 800, so far from being inefficacious, not only continue to act with sufficient power to cure every kind of disease, but that the power of the medicines generally, and the number of their characteristic symptoms, are developed in a more perfect manner by these medicines; and that very often a disease is cured with them, which had been attacked in vain with the lower potencies of the same remedy.
"'Convinced of the truth of this most important discovery, I have used these high potencies for two years past, and I am so entirely satisfied with the results, that during the last year I have
