with medicinal substances than any of Hahnemann's smelling bottles ever were or ever could be. We seldom if ever breathe pure unadulterated atmospheric air. In crowded places it is laden with all sorts of animal exhalations, and we cannot live in the vicinity of the hemlock or henbane, without imbibing more or less of their poisonous emissions. Every peach blossom imparts to the surrounding air hydrocyanic acid, and every poppy exhales opium. And the doses of such things which we daily and unconsciously receive into our systems, exceed, by millions and millions of times, any amount that could ever be administered by Hahnemann's method of olfaction. It is not unreasonable to suppose that the air which we breathe every day, brings on the wings of the wind, from the noxious plants of India, and the venomous serpents of Peru, poisons, which after their thousand attenuations and succussions, would be sufficient to destroy all mankind, if there was any truth in Hahnemann's doctrines. The poisonous fumes of smelting ores in Illinois and California, would reach and cut off the farthest tenant of the globe, if suc-