In the last panel, that of _Peace and Prosperity_, the central figure is crowned with olive, the emblem of peace, and holds in her hands olive-wreaths to be bestowed as the reward of excellence. On either side is a youth, the one to her right typifying the Arts, and the other, Agriculture. The former sits upon an amphora or jar, and is engaged in decorating a piece of pottery; behind him is a lyre, for Music, and in the distance a little Grecian temple, for Architecture. The other is planting a sapling,--an act suggestive of a tranquil, just, and permanent government, under which alone one could plant with any hope of enjoying the shade and fruit of after years. The background of the picture is a well-wooded and fertile landscape, introduced for much the same purpose as the wheat-field in the preceding tympanum. [Illustration: ANARCHY.--BY ELIHU VEDDER.] Still another piece of symbolism is expressed in this interesting series of pictures by the trees, their foliage forming the background against which the central figure is placed. The oak in the central panel has been spoken of. In the design representing _Peace and Prosperity_, an olive-tree typifies not only Peace but Spring; in the next panel, that of _Good Administration_, the tree is the fig, and the season summer; in that of _Corrupt Legislation_, the autumnal vine, hinting at a too abundant luxury, and with its falling leaves presaging decay; and in that of _Anarchy_, bare branches and Winter. =The Second Floor Corridors.=--Returning again to the Entrance Hall proper, the visitor may most conveniently continue his tour of the Library by ascending the Grand Staircase to the beautifully decorated corridors of the second-story arcade, on his way to the public galleries of the Main Reading Room. The corridors are arranged like those which the visitor has already passed through on the first floor, but their greater height and the brighter tone of the decoration give an effect of considerably greater spaciousness.