The building is entered from the _Cortile del Papagallo_[375] through a marble doorway (fig. 98, A) in the classical style surmounted by the arms of Sixtus IV. On the frieze are the words SIXTUS PAPA IIII. The doorcase is doubtless that made in 1476; but the door, with its gilt nails and other adornments, has disappeared. Within the doorway there has been a descent of three steps at least to the floor of the Library[376]. The four rooms of which it was once composed are now used as the _Floreria_ or _Garde-meuble_ of the Vatican Palace; a use to which they have probably been put ever since the new Library was built at the end of the sixteenth century. The Latin Library, into which the door from the court opens directly, is a noble room, 58 ft. 9 in. long, 34 ft. 8 in. wide, and about 16 ft. high to the spring of the vault. In the centre is a square pier, which carries the four plain quadripartite vaults, probably of brick, covered with plaster. The room is at present lighted by two windows (B, C) in the north wall, and by another, of smaller size, above the door of entrance (A). That this latter window was inserted by Sixtus IV., is proved by the presence of his arms above it on a stone shield. This is probably the window "next the court" made in 1475. The windows in the north wall are about 8 ft. high by 5 ft. broad, and their sills are 7 ft. above the floor of the room. Further, there were two windows in the west wall (_b_, _c_) a little smaller than those in the north wall, and placed at a much lower level, only a few feet above the floor. These were blocked when the Torre Borgia was built by Alexander VI. (1492-1503), but their position can still be easily made out. This room must have been admirably lighted in former days. The room next to this, the Greek Library, is 28 ft. broad by 34 ft. 6 in. long. It is lighted by a window (fig. 98, D) in the north wall, of the same size as those of the Latin Library, and by another (_ibid._, E) a good deal smaller, opposite to it. This room was originally entered from the Latin Library by a door close to the north wall (_d_). But, in 1480[377], two large openings (_e_, _f_) were made in the partition-wall, either because the light was found to be deficient, or because it was thought best to throw the two rooms into one as far as possible. At some subsequent date the door (_d_) was blocked up, and the opening next to it (_e_) was carried down to the ground, so as to do duty as a door. The other opening (_f_), about 7 ft. 6 in. square, remains as constructed.