"It seems to us," said the doctor, "that among the minor inconveniences of life in your day none could have been more vexing than the recurrent interruption of all, or of the larger part of all, public services every night. Most of the people, of course, are asleep then, but always a portion of them have occasion to be awake and about, and all of us sometimes, and we should consider it a very lame public service that did not provide for the night workers as good a service as for the day workers. Of course, you could not do it, lacking any unitary industrial organization, but it is very easy with us. We have day and night shifts for all the public services--the latter, of course, much the smaller." "How about public holidays; have you abandoned them?" "Pretty generally. The occasional public holidays in your time were prized by the people, as giving them much-needed breathing spaces. Nowadays, when the working day is so short and the working year so interspersed with ample vacations, the old-fashioned holiday has ceased to serve any purpose, and would be regarded as a nuisance. We prefer to choose and use our leisure time as we please." It was to the Leander Natatorium that we had directed our steps. As I need not remind Bostonians, this is one of the older baths, and considered quite inferior to the modern structures. To me, however, it was a vastly impressive spectacle. The lofty interior glowing with light, the immense swimming tank, the four great fountains filling the air with diamond-dazzle and the noise of falling water, together with the throng of gayly dressed and laughing bathers, made an exhilarating and magnificent scene, which was a very effective introduction to the athletic side of the modern life. The loveliest thing of all was the great expanse of water made translucent by the light reflected from the white tiled bottom, so that the swimmers, their whole bodies visible, seemed as if floating on a pale emerald cloud, with an effect of buoyancy and weightlessness that was as startling as charming. Edith was quick to tell me, however, that this was as nothing to the beauty of some of the new and larger baths, where, by varying the colors of the tiling at the bottom, the water is made to shade through all the tints of the rainbow while preserving the same translucent appearance. I had formed an impression that the water would be fresh, but the green hue, of course, showed it to be from the sea. "We have a poor opinion of fresh water for swimming when we can get salt," said the doctor. "This water came in on the last tide from the Atlantic." "But how do you get it up to this level?"