Of all the great cities, London, on the whole, contains the most to interest and instruct Americans. It has doubled in population in the memory of men still young. Most readers remember when Macaulay's history appeared. In the first volume the author contrasted the grandeur of the modern city with the London of Charles II., and boasted that the number of inhabitants had increased from little more than 5,000 to at least 1,900,000. In the brief time that has passed since Macaulay wrote, the 1,900,000 has become 4,000,000. A few contrasts taken from the best estimates will give some suggestions of the immense magnitude of the city. It is aptly described as a province covered with houses. New York is equal in population to the aggregate of Maine and New Hampshire. London equals Maine, New Hampshire, Vermont, Rhode Island, Connecticut, Massachusetts and California all together. To equal the city of London here, we should have to bring together the people of the following cities: New York, Philadelphia, Brocklyn, St. Louis, Chicago, Boston, Baltimore, Cincinnati, New Orleans, Buffalo, San Francisco, Washington, and Louisville. The transient people in New York are about 30,000; in London, 160,000. In New York a baby is born every fifteen minutes, and a death occurs every seventeen minutes. In London a birth occurs every six minutes, and a death every eighth. The drinking places in New York set in one street would extend seventeen miles; those in London, seventy-three miles.