Is it worthy of boasting that sanitary science is only increasing the hardships and adding to the number of mouths to be fed, without opening up new ways to earn one’s bread? Even if it be so decided, and all the claims of progress thus far made be declared wanting, there still remains much worthy of praise. Sanitary science strives not only to prevent disease, but also to promote health, and its progress is fully as marked in its efforts at promotion as in those of prevention, although we do not possess the cold figures of even imperfect vital statistics to demonstrate the proposition. It must be kept in mind that sanitary science is wider than sanitation in its technical sense. One would not care to assert that philanthropic effort and sweet charity are resultants of the development of sanitary science,—very few care to assert an evident untruth. But the influence of this study has been widespread and beneficial. The whole round of social science is also permeated with the truths demonstrated by the sanitarian, and is likewise deeply indebted to its teachings. Our field broadens greatly as we view it, just as one who has been traveling through a vale of surpassing grandeur, because of the mountain barriers on either side, finds himself confronted by a park whose beauty is enhanced by its variety as well as its extent, bounded, it is true, by the same mountains, but merely a hazy definition of the distant horizon. In the construction of dwellings, for example, the small, low ceiled rooms, whose earthen or stone floors were covered with rushes seldom removed, the absorbers of whatever might fall upon the floor; the unpaved, unswept, and unsewered street; the domestic water supply but a well into which filters the water from the adjoining cesspool,—these and many similar destroyers of health and comfort can no longer be found among nations classed as enlightened in our school geographies. Even the improvements of half a century ago—the tenements improvised out of the deserted mansions of the well-to-do, with the additions built on the rear of the lot to increase the density of the population and the rent of the owner (as well as the death-rate), are disappearing, and in their places we find dwellings capable of furnishing air and light to all of the residents. [Illustration: A QUARANTINE STATION.]