_Zoölogy_ is represented with a lion seated beside her, her hands clasping his mane. She is the huntress and student of wild life, and her body is powerfully developed, like an Amazon’s. She is clad in the pelt of an animal, the head forming her cap, and in buskins of skin. She stands on a rocky piece of ground, like a desert. The chief colors employed in the pendentive are the typical animal colors, browns and yellows. _Physics_ stands on an electric globe, from which emanate rays of light. She carries a torch in her left hand, and she holds up an end of her drapery in her right in such a way that it seems to start from the flame and flow in sympathy with it over her whole body, so that it conveys the idea of the unceasing motion of fire. The same colors as those used in the pendentive of _Geology_, purple and orange, are used here also, but in this case standing, of course, for the colors of flame. [Illustration: MATHEMATICS. BY WALTER SHIRLAW] _Mathematics_, the exact science, is represented as almost entirely nude,--like “the Naked Truth” of Mr. Walker’s tympanum on the floor below. Her right foot is on a stone block inscribed with the conic sections, and on a shield which she holds are various geometrical figures. Her scanty drapery is appropriately disposed in the severest lines. _Geology_, a sculpturesque figure, stands squarely and firmly upon a mountain top, beyond which is seen the setting sun. A fold of her drapery forms a receptacle for the specimens she has gathered. In her left hand is a globe, and in her right a fossil shell. Her hair is confined by a head-dress of bars of silver and gold. The embroidered pattern of her garment has a suggestion of fossil forms and of the little lizards which are found among the rocks. _Archæology_ is clad in the Roman costume, and wears the helmet of Minerva; the helmet is wreathed with olive, the emblem of peace, which was sacred to Minerva, and is here used with special reference to the peaceful character of the science, which can pursue its labors only in an orderly society. The figure stands on a block of stone, the surface of which is carved to represent a scroll, the ancient form of book. A vase, copied from the manufacture of the Zuñi Indians of New Mexico, stands beside her. In her right hand she holds a large book, the pages of which she examines with the aid of a magnifying glass in order to spell out its half obliterated text. Around her neck is coiled a chameleon, whose changing hues are intended to symbolize the varying nature of the theories she propounds. The countenance of _Botany_ is expressive of a joyous sympathy with nature. She stands on the pad of a water-lily, engaged in analyzing its flower, the long stem of which coils gracefully about her body to the water. Her drapery flows and breaks as a half-opened flower might arrange itself.