Peking, as we may see, is a walled city of oblong shape, and contains a total area of about thirty square miles. The two chief divisions are known as the Tartar city and the outer or Chinese city. The population is now about 1,000,000. Writing twenty years ago Sir Robert Douglas thought that a population of a mere million was "out of all proportion to the immense area enclosed within its walls. This disparity," he continued, "is partly accounted for by the fact that large spaces, notably in the Chinese city, are not built over, and that the grounds surrounding the Imperial Palace private residences are very extensive." What would he have said of Chicago, New York, Budapest, or, indeed, of any modern capital "expanded"? To us, at the beginning of the twentieth century, a million inhabitants seems a very respectable population indeed for a city of only thirty square miles, and in this respect we can no longer sneer or be astonished at the "peculiarities" of Oriental cities. [Illustration: BOSTON COMPARED WITH LONDON.] Boston is one of the older and more conservative American cities which have lately been seized by the expansion fever, and now proudly refers to its "Greater Boston." But this is as yet only a term, and the new Boston metropolitan district, embracing all the area within a circle of ten miles from the State House, is hardly yet a distinct municipality. It will doubtless soon come about, and in that case twenty-two towns and cities will be taken to the bosom of "the Hub," and the total population will be close upon a million and a quarter. At present the area of the city is over thirty-seven square miles (24,000 acres), or just the size of Chicago a decade ago, of which 2,308 acres are common open spaces and 126 acres ponds and rivers, in addition to numerous squares, gardens, and playgrounds. The length of the city is eight miles and its greatest breadth about seven miles. [Illustration: COMPARED WITH LONDON.--THE SOLID BLACK AREA REPRESENTS THE ACTUAL BUILDINGS OF CHICAGO; THE GREY AREA COMPLETING THE ADMINISTERED CITY.]