its spacious wings, and here fountains plash and bands play, while the visitors promenade or sit and gossip upon the extensive piazzas. Its front piazza, spreading along Broadway, is eight hundred feet long and three stories high. Its dining-hall is two hundred and seventy-five feet long and sixty feet wide, the largest in existence, and seats seventeen hundred people at table. The United States Hotel, north of the Grand Union, and Congress Hall, across Broadway, are also enormous caravansaries, and in busy times these three hotels will accommodate over six thousand guests, the cost of running each of them for one day being $7500 to $10,000. Everything in these gigantic hotels is arranged upon a scale of splendor and immensity almost requiring a railway train to take the visitor about them. Many of the twenty-eight mineral springs of Saratoga border Broadway or are near it, and the most noted, the "Congress" and the "Hathorn," are on either side of Congress Hall, thus being easy of access. The geologists say these springs rise from a line of "fault," which brings the slaty formations of the Hudson River against the sandstones and limestones that are above. They are generally muriated saline springs of about 50° temperature, the Congress Spring having about the strength of Kissingen Racoczy, but a milder taste, while the Hathorn Spring, its great rival, contains more chloride of sodium and iron. Some of the springs are chalybeate, others sulphurous or iodinous, and all are highly charged with carbonic acid gas. The Saratoga Seltzer resembles the seltzer of Germany, and the Geyser Spring is so highly charged that when drawn from a faucet it foams like soda water. The waters are both tonic and cathartic. The "High Rock Spring" bubbles up through an aperture in a conical rock composed of calcareous tufa, which has been formed by the deposits from the waters. This rock is four feet high, with a rounded top, in the centre of which is a circular opening a foot in diameter. The depth of the spring from the present top of the rock is thirty-two feet. The waters used to overflow occasionally and increase the size of the rock by the deposits, but a tree was blown down and cracked the rock, since which the waters will only rise to about six inches below the top. A pagoda covers it, beneath which water is ladled out to the thirsty. The Congress Spring is in a tasteful park, having this and the Columbian Spring under an elaborate pavilion. This Congress Spring was found by a hunting party who went through the valley in 1792, and named it in honor of a member of Congress who was with them. To this park go the crowds in the morning before breakfast to drink the waters, which are freely furnished either cold or hot, and music plays while the people drink glass after glass. Each pint of Congress water contains about seventy-five grains of mineral constituents and forty-nine cubic inches of carbonic acid gas. It is cathartic and alterative. The