The bald statement of the death-rate, of course, admits of much analysis where proper records are kept. Thus the death-rate from different diseases and groups of diseases can be stated, and the death-rate in each group at different ages and for the two sexes can be given where proper records are kept. In this country the records of population in various areas and for the whole country, and of the deaths from various causes, and at different ages, are collected and tabulated by the Registrar-General and his officials. The annual reports issued by him show what an amazing progress has been made in increasing the security of life in our great cities within the last fifty years. Thus, in London, the death-rate was, fifty years ago, 24 in the thousand. In 1906 it was only 15.1 in the thousand—it has gradually fallen, year by year, so that now it is less than two-thirds of what it was half a century ago. In Manchester and Liverpool it was about 26 twenty years ago, and has fallen to 19 in Manchester and to a little over 20 in Liverpool. In the same period the improvement has been (omitting fractions) from 19 to 14 in Bristol; from 20 to 16 in Birmingham; from 20 to 14 in Leicester. This great diminution in the death-rate has been coincident with the expenditure of public funds on the improvement of the water supply and the sewage arrangements of those cities, as well as with the enforcement of regulations to prevent overcrowding, and with the demolition of the most insanitary houses. Rules as to the removal of filth from the neighbourhood of dwelling-houses have been obeyed, and sick persons suffering from infectious diseases have been removed from dwelling-houses and conveyed to special hospitals. There is no doubt that the diminished death-rate is due to the action thus taken, and more will be done in the future to the same end. The proper provision of pure milk (at a reasonable price) for the food of the youngest children, of regular meals for older children, and the protection of adults from the too frequent inducement to indulge in the use of distilled spirits, will be taken in hand by the municipalities, and lead to a further diminution in the death-rate.