Although Pekin cannot boast, like ancient Rome, or modern London, of the conveniences of common sewers to carry off the dirt and dregs that must necessarily accumulate in large cities, yet it enjoys one important advantage, which is rarely found in capitals out of England: no kind of filth or nastiness, creating offensive smells is thrown out into the streets, a piece of cleanliness that perhaps may be attributed rather to the scarcity and value of manure, than to the exertions of the police officers. Each family has a large earthen jar, into which is carefully collected every thing that may be used as manure; when the jar is full, there is no difficulty of converting its contents into money, or of exchanging them for vegetables. The same small boxed carts with one wheel, which supply the city with vegetables, invariably return to the gardens with a load of this liquid manure. Between the palace of _Yuen-min-yuen_ and Pekin, I have met many hundreds of these carts. They are generally dragged by one person, and pushed on by another; and they leave upon the road an odour that continues without intermission for many miles. Thus, though the city is cleared of its filth, it seldom loses its fragrance. In fact, a constant disgusting odour remains in and about all the houses the whole day long, from the fermentation of the heterogeneous mixtures kept above ground, which in our great cities are carried off in drains. The medical gentlemen of China are not quite so ingenious, as we are told the faculty in Madrid were about the middle of the last century, when the inhabitants were directed, by royal proclamation, to build proper places of retirement to their houses, instead of emptying their nocturnal machines out of the windows into the streets. The inhabitants took it into their heads to consider this order as a great affront, and a direct violation of the rights of man; but the doctors were the most strenuous opposers of the measure, having no doubt very cogent reasons for wishing the continuance of the practice. They assured the inhabitants, that if human excrement was no longer to be accumulated in the streets, to attract the putrescent particles floating in the air, they would find their way into the human body, and a pestilential sickness would be the inevitable consequence.