England is naturally very well supplied with sea-bathing resorts, and it is possible to get a sea-bath in our island combined with any variety of climate, from the cold and bracing to the mild and relaxing. Sea-air, the great value of which is well understood as a curative agent, has certain peculiarities. It is necessarily the purest air that can be got, and when the breeze is off the sea the air comes to the shore practically uncontaminated and free from the exhalations of animals or furnaces. It is said to be very rich in ozone, and it certainly contains fine saline particles supplied to it by the sea-spray, and possibly small quantities of iodine, which give to the sea-breeze that peculiar odour which it undoubtedly possesses. Sea-air is dense, and the barometer stands at its maximum at the sea-level. Sea-air is warmer than the air of inland places, and it is more equable in its temperature owing to the comparatively slight changes in temperature which the sea itself undergoes. The effect of sea-air is very stimulating, and sojourners by the sea have their appetites increased and their vital functions quickened. While speaking of sea-air we must remind the reader that the air of the seaside places is often far from good, owing to the defective sanitary arrangements. There are not a few towns on our coasts, the sewers of which are taken out on to the beach where visitors most do congregate, and the smell of sewage at low tide is often far from pleasant. In selecting a sea-bathing place it is of importance to attend, not only to the aspect and general situation of the town, but to inform oneself whether or not it be thoroughly drained, the sewers being carried either inland to a proper sewage farm or far out to sea well beyond low-water mark; whether the water supply for drinking purposes be good and abundant, and whether the general cleanliness of the town is properly attended to. Climate is a very local phenomenon, and it is of as much importance to see that the bedroom and sitting-room which an invalid has to occupy are well ventilated and have a good aspect, as to attend to the latitude and general aspect of the locality chosen. It is of little use to send a patient to the sea if he has to spend the greater part of his time in small rooms made unbearable by gaslights or the defective drainage of the house; and an invalid with delicate lungs will derive but little benefit from a sojourn in the south if his windows face the north and he is afraid to open them.