and luxury stands higher through all the social grades. It is further to be recollected that health and the chief comforts of life are correlative,--that the squalid family is the unhealthy family, and that, as we import our squalor, so also we import the materials and conditions of our disease. This _a priori_ view is amply sustained by the statistics of our charitable institutions. Dr. Alanson S. Jones, whose position as President of the Board of Surgeons attached to the Metropolitan Police Commission combines with his minute culture in the sciences ministering to his profession to make him a first-class authority upon the sanitary statistics of New York, states that the large majority of deaths, and cases of disease, occur in that city among the recent foreign immigrants,--and that the same source furnishes the vast proportion of inmates of our hospitals, almshouses, asylums, and other institutions of charity; furthermore, that two thirds of all the deaths in New York City occur among children,--a class to which metropolitan conditions are decidedly unfavorable; and that, while the seven hundred thousand inhabitants of Philadelphia are distributed over an area of one hundred and thirty square miles, the one million inhabitants of New York are included within the limit of thirty-five square miles, yet the excess of proportionate mortality in the latter city by no means corresponds to its density of settlement. It is safe to affirm, that, taking all the elements into calculation, there is no city in the civilized world with an equal population and an equal sanitary rank.