1. The removal or destruction of all those putrid matters formerly enumerated, which are capable of producing fevers. Many of the institutions of the Jewish nation, for this purpose, are worthy of our imitation. The following verses contain a fund of useful knowledge upon this subject.--"Thou shalt have a place without the camp, whether thou shalt go forth abroad; and shalt have a paddle upon thy weapon, and it shall be when thou wilt ease thyself abroad, thou shalt dig therewith, and shalt turn back, and cover that which cometh from thee; for the Lord thy God walketh in the midst of thy camp to deliver thee, therefore shall he _see no unclean thing in thee_, and turn away from thee." Deuteronomy, chapter xxiii. verses 12, 13, and 14. "But the flesh of the bullock, and his skin, and his dung, shalt thou _burn with fire without the camp_." Exodus, chapter xxxix. verse 14. The advantages of thus burying and removing all putrid matters, and of burning such as were disposed to a speedy putrefaction, in a crowded camp, and in a warm climate, are very obvious. Their benefits have often been realized in other countries. The United Provinces of Holland hold their exemption from the plague, only by the tenure of their cleanliness. In the character given by Luther of Pope Julius, he says, "he kept the streets of Rome so clean and sweet, that there were no plagues nor sicknesses during his time." The city of Oxford was prepared to afford an asylum to the royal family of Great-Britain from the plague, when it ravaged London, and other parts of England, in the year 1665, only in consequence of its having been cleaned, some years before, by the Bishop of Winchester. In a manuscript account of the life of Doctor, afterwards Governor Colden, of New-York, there is the following fact. It was first communicated to the public in the daily gazette of the capital of that state, on the 30th of October, 1799. "A malignant fever having raged with exceeding violence for two summers successively in the city of New-York, about forty years ago, he communicated his thoughts to the public, on the most probable cure of the calamity. He published a little treatise on the occasion, in which he collected the sentiments of the best authority, on the bad effects of _stagnating waters_, _moist air_, _damp cellars_, _filthy shores_, and _dirty streets_. He showed how much these nuisances prevailed in many parts of the city, and pointed out the remedies. The corporation of the city voted him their thanks, adopted his reasoning, and established a plan for draining and cleaning the city, which was attended with the most happy effects." The advantages of burning offal matters, capable by putrefaction of producing fevers, has been demonstrated by those housekeepers, who, instead of collecting the entrails of fish and poultry, and the parings and skins of vegetables, in barrels, instantly throw them into their kitchen fires. The families of such persons are generally healthy.