founded on analogy. When we dispute their provings of great effects from little causes, or no causes at all, we are told that such things, though strange, are nevertheless true, and confirmed by analogous cases. They say, see how very little poison is capable of killing a strong animal—how little virus will produce the smallpox. They ask us to weigh malaria and measure miasma. If there was any force in this argument, we might show, by the same kind of reasoning, that a spider might spin a ship's cable, an ant overturn a mountain, and the smallest insect drink up the ocean. These men forget that the science and art of medicine should be governed and conducted by the same reason and common sense that are employed in every other department of business. They fly off in a tangent to the wild fields of fancy, without taking account of their own position. It is true that a single spark may explode a whole magazine, and a single match may inflame the most stately mansion; and if Homœopathy were true, a few drops of water (which all acknowledge is the right remedy) would be sufficient to quench the conflagration.
