The Senate Reading Room is finished in much the same style as the House Reading Room, but with less elaboration of ornament. On the whole, the effect, though quieter, is perhaps more restful and satisfying. A toilet room, leading from the lobby just spoken of, cuts off a portion of the pavilion, but allows space above for a low gallery enclosed by a delicately carved balustrade of Sienna marble. Below, the oak dado is ornamented with delicate inlaid arabesques of white mahogany. Above the dado the walls are covered with figured red silk. In the southwest corner is a fireplace of Sienna marble, with a sculptured panel of the same material by Mr. Herbert Adams. The design shows an eagle with arrows in his claws, and an American shield supported by flying cherubs. The doorhead tympanum is of oak, like those in the House Reading Room, and contains a carved panel, also by Mr. Adams, with a heraldic shield bearing the monogram, “U. S. A.,” and supported by mermaids. The gold ceiling contains six square panels, each containing four graceful female figures holding garlands in their hands--the work of Mr. William A. Mackay. THE NORTH CORRIDOR. The corridor leading to the north from the Main Entrance Hall is, as has been said, similar in design to that opening into the Congressional Reading Rooms. The design of the floor and ornament upon the arches is somewhat different, however. The tympanums which it contains are ornamented by a series of paintings, by Mr. Edward Simmons, representing the nine _Muses_. =Mr. Simmons’s Paintings.=--The Muses, according to the Greek mythology, were the goddesses of the various departments of Art, Poetry, and Science. Apollo, the God of Song, was their father, and Mnemosyne (Memory) their mother. Their names, given in the order in which they occur in Mr. Simmons’s series, beginning at the south end of the corridor, were as follows: Melpomene, Clio, Thalia, Enterpe, Terpsichore, Erato, Polyhymnia, Urania, and Calliope. Melpomene was the Muse of Tragedy; Clio, of History; Thalia, of Comedy and Bucolic Poetry; Enterpe, of Lyric Song; Terpsichon, of Dancing; Erato, of Erotic Poetry; Polyhymnia, of Sacred Song; Urania, of Astronomy; and Calliope, of Epic Poetry. [Illustration: MELPOMENE.--BY EDWARD SIMMONS.]