The chapel seats seven hundred persons, and might hold a thousand. Over the altar is a beautiful copy of the Dresden Madonna, by Miss Church, of New York. There is also a fine organ. The music-rooms accommodate a "conservatory" on the Charles Auchester plan, as well as separate pupils. Thirty-two pianos are in use. The building on the outside is laid with brick in black cement, and has dark stone trimmings, which prevent its glaring on the eye like a new brick building. To the right is the riding-school, one hundred feet by sixty, where thirty horses are kept; and, in the same building, a gymnastic hall, thirty feet by seventy. The observatory, eighty feet long and fifty high, rests on the rock, as well as the great pier. It contains a telescope made by Fitz, whose focal length is seventeen feet, and its object-glass is twelve and a half inches. There is also a smaller instrument, for the constant use of pupils, and, on the roof, a good comet-seeker. There is a beautiful transit circle, made by James, of Philadelphia, which Miss Mitchell considers invaluable of its kind; and a very perfect sidereal clock and chronograph, from the Bonds of Boston. Between the observatory and the riding-school, four hundred feet from the main building, is the gas and boiler building, from which the college is lighted and warmed. Beside these, twenty miles of water-pipe travel up and down the corridors to supply culinary and domestic needs. Let us follow them into the kitchen, and we shall find there every possible convenience of a good hotel, to the steam-filled table on which the food is carved.