The old physician who accompanied me had said, "We need not go farther;" but our determination was, on full and mature reflection, to know the worst and the whole, and we governed ourselves accordingly. Close to one corner of the kitchen was the well, the water in which was very low, and near to that the sink. And if the contents of the sink did not find their way, from day to day, into the well, thus adding impurity to putridity, it must have been in virtue of some unknown law which stood opposed to the great law of specific gravity and attraction. It is true that many speak of the earth as having a _cleansing_ power in such cases; but I know of no power which it possesses of cleaning sink water, while the latter is passing only five or six feet through it. The coarser parts may be strained out, but the essence must remain.[F] But our work was not yet finished. The vault, greatly neglected, was not far from the well; and so of the pigsty. Nor was it easy to resist the conviction that there was an underground communication between them. Then, finally, the house instead of standing on an elevation, greater or less,--a very common mode of building in New England,--stood in a sort of concavity, which contained also the barn and barnyard and woodpile;--connected with both of which was a large amount of decayed and decaying animal and vegetable matter. Now after such a review as this, he who could remain in doubt with regard to the cause of existing disease, especially on its assuming the form of bowel complaint with typhoid tendencies, must be much more ignorant of the laws of health and disease than I was. In fact the signs were unmistakable. We immediately made our report to the heads of the family, and recommended a most thorough cleansing, at once. It was easy to see that we gave great offence; indeed we had anticipated such a result. But we were not at all intimidated. We insisted on a work of immediate expurgation, which was finally effected, only we could not put pure water into the well. But we could and did require that the well water should not be used for any thing except washing clothes. The result was a decided and almost immediate improvement in the condition of the family, except the two already spoken of, and a very young child. These three died. Some of the rest lingered for weeks, and one or two for months; but they finally recovered. It is worthy of remark, moreover, that of the people of the neighborhood, though they had been excessively frightened and had not at first dared to come near the house, at least without holding their breath, not a person among them sickened. The disease began and ended over the foul cellar I have mentioned; nor has a similar disease ever since broken out there. The fair presumption is, that they have never since suffered such foul accumulations to remain through the hot season, on their premises.