The amount given by “Z.” of Berlin (No. 18), of 155-1/3 millions for 1790 is quoted in the _Chinese Repository_, but the writer states no authorities, was probably never in China, and as it appears at present, is undeserving the least notice. That given by Dr. Morrison for 1792 (No. 19), the year before Lord Macartney’s embassy, is quoted from an edition of that date, but probably was really taken in 1765 or thereabouts, but he did not publish it in detail.[152] It is probably much nearer the truth than the amount of 333 millions by the commissioner Chau to the English ambassador. This estimate has had much more respect paid to it as an authentic document than it deserved. The Chinese commissioner would naturally wish to exalt his country in the eyes of its far-travelled visitors, and not having the official returns to refer to, would not be likely to state them less than they were. He gave the population of the provinces in round numbers, perhaps altogether from his own memory, aided by those of his attendant clerks, with the impression that his hearers would never be able to refer to the original native authorities. The next one quoted (No. 21) is the most satisfactory of all the censuses in Chinese works, and was considered by both the Morrisons and by Dr. Bridgman, editor of the _Chinese Repository_, as “the most accurate that has yet been given of the population.” In questions of this nature, one well authenticated table is worth a score of doubtful origin. It has been shown how apocryphal are many of the statements given in foreign books, but with the census of 1812, the source of error which is chiefly to be guarded against is the average given to a family. This is done by the Chinese themselves on no uniform plan, and it may be the case that the estimate of individuals from the number of families is made in separate towns, from an intimate acquaintance with the particular district, which would be less liable to error than a general average. The number of families given in the census of 1753, is 37,785,552, which is more than one-third of the population. ~THE FOUR MOST RELIABLE CENSUSES.~ The four censuses which deserve the most credit, so far as the sources are considered, are those of 1711, 1753, 1792, and 1812 (_i.e._, Nos. 8, 13, 19, and 21); these, when compared, show the following rate of increase: From 1711 to 1753, the population increased 74,222,602, which was an annual advance of 1,764,824 inhabitants, or a little more than six per cent. per annum for forty-two years. This high rate, it must be remembered, does not take into account the more thorough subjugation of the south and west at the later date, when the Manchus could safely enrol large districts, where in 1711 they would have found so much difficulty that they would not have attempted it.