water most excellent for drinking as well as for cooking purposes. It was perfectly clear and tasteless, and harmless in its effects. During their stay here all the members of the party, as well as the soldiers comprising their escort, enjoyed the luxury of bathing in these most elegantly carved natural bathing-pools; and it was easy to select, from the hundreds of reservoirs, water of any desired temperature. These natural basins vary somewhat in size, but many of them are about four by six feet in diameter, and one to four feet in depth. Their margins are beautifully scalloped, and adorned with a natural beadwork of exquisite beauty. [Illustration: BATHING-POOLS (DIANA'S BATH.)] The level or terrace upon which the principal active springs are located, is about midway up the sides of the mountain, covered with the sediment. Still farther up are the ruins of what must have been at some period more active springs than any at present known. The sides of the mountain for two or three hundred feet in height, are thickly encrusted with calcareous deposit, originally ornamented with elegant sculpturing, like the bathing pools below; but atmospheric agencies, which act readily on the lime, have obliterated all their delicate beauty. The largest living spring is near the outer margin of the main terrace. Its dimensions are twenty-five feet by forty, and its water so perfectly transparent that one can look down into the beautiful ultramarine depth to the very bottom of the basin. Its sides are ornamented with coral-like forms of a great variety of shades, from pure white to a bright cream yellow, while the blue sky reflected in the transparent water gives an azure tint to the whole which surpasses all art. From various portions of the rim, water flows out in moderate quantities over the sides of the hill. Whenever it gathers into a channel and flows quite swiftly, basins with sides from two to eight feet high are formed with their ornamental designs proportionately coarse; but when the water flows slowly, myriads of little basins are formed, one below another, with a semblance of irregular system. The water holds in solution a great amount of lime, with some soda, alumina and magnesia, which are slowly deposited as the water flows down the sides of the mountain. Underneath the sides of many of the pools are rows of exquisitely-ornamented stalactites, formed by the dripping of the water over the margins. All these springs have one or more centres of ebullition which is constant, though seldom rising more than four or five inches above the surface. The ebullition is due mainly to the emission of carbonic acid gas. The springs in the centre of the main basin are probably all at the boiling point--194° at this elevation. Being inaccessible, however, it is impossible to determine their actual temperature. The hottest that could be reached was 162° Fah. The terrace immediately above the main basin is bordered by a long