Thus the bedroom of the new age will be a much more convenient and satisfactory apartment than the one we slept in last night, and another irksome and unelevating part of the domestic work of our servants will be eliminated. But the sleeping-apartments, and indeed all apartments in city homes, will contain yet another very valuable and necessary article of furniture--the oxygenator. Nearly all the unhealthiness and the pinched, weary greyness of town-dwellers to-day could be cured by fresh air. Everyone is familiar with the improvement which can be effected in the health and appearance of a city family by even a short visit to the seaside or the country--an improvement which it happens to be fashionable just now to attribute, in the former case, to the presence of ozone in the sea air. The fact that holiday-makers are able to endure the smell of slowly-decaying seaweed with a dash of putrescent fish about it, which is called "sea-air," without injury, and even to pick up health in the presence of it, is more due to the absence of carbon dioxide and other deleterious gases of the towns than to anything else. The beneficent effects of country air are practically all due to the power possessed by green vegetation of superoxygenating the surrounding air. The atmosphere of cities, or at all events of city homes, will presently be freed from the products of combustion and respiration, and endowed with a slightly-increased proportion of oxygen, by artificial means. And especially in bedrooms, rendered to-day stuffy and unhealthy by the idiotic fear of night air which an effete tradition has handed down to us, will this reform be in evidence. Prudent people to-day insist on large bedroom windows--preferably of the French-door pattern--and keep them wide open all night. But this is attended by inconveniences in cold and wet weather; and while our grandchildren will still keep their windows open all night in all weathers, they will not be content with this alone. There will be a chemical apparatus hidden away in some corner, or built into the wall, which will absorb carbon dioxide and at the same time slowly give off a certain amount of oxygen--just enough to raise the oxygenation of the air to the standard of the best country places. And similar appliances will be at work in the streets of our cities, so that town air will be just as wholesome, just as tonic and invigorating, as country air. If the theory that the presence of ozone (that is, allotropic oxygen) in the sea air is beneficent stand the test of time, no doubt ozonators will form part of these appliances: but in any case, as the high buildings of the new age will keep out the sunlight, electric light, carrying all the ray-activity of sunlight, and just as capable of fostering life and vegetation, will serve the streets. Thus, so far as hygiene goes, town life will be on a par with country life: but many people will prefer the country, and means will