of Voltaire; the hardy Sir Francis Drake; Cosmo de Medici and his secretary (a copy from Titian); Martin Luther; Jean Rousseau; Captain William Dampier, by Murray; Giorgioni's Ulysses Aldrovandus; Sir Peter Paul Kubens; the inventor of moveable type, John Guttenberg (which would be more appropriately placed in the library); John Locke; a poor woman, named Mary Davis, who in the seventeenth century, was celebrated for an excrescence which grew upon her head, and finally parted into two horns; the great Algernon Sidney; Pope; Ramsay's portrait of the celebrated Earl of Chesterfield, who, according to Dr. Johnson, "taught the morality of a profligate, and the manners of a dancing master," and a landscape by Wilson. At the northern door of this gallery are, a painting of Stonehenge, and one of the cromlech at Plâs Newydd, in Anglesea. The visitor's way now lies to the west out of the eastern zoological gallery into the most southerly of the two northern galleries. This gallery, which consists of five compartments, or rooms, is called THE NORTHERN ZOOLOGICAL GALLERY. The wall cases of this gallery, to which the visitor's attention should now be exclusively devoted, contain various zoological families. In the first eight wall cases of the room are distributed the varieties of Bats. These are placed here, away from the mammalia, on account of the pressure of room. They are not to be mistaken as birds in any particular. They are essentially mammalia, inasmuch as they produce their young in a breathing state and suckle them. The bats of England and other cold climates remain in a torpid condition, and only spread their wings of stretched skin when the songbirds report the advent of the warmth of spring. The visitor will notice amongst the varieties in the three first cases, the Brazilian bats, including the vampire bat (which has been known to attack a man in his sleep and suck blood from him), the remarkable leaf-nosed bats which are ranged upon the upper shelves, and the Indian and African varieties; and underneath are grouped the well-known horse-shoe bats of the eastern hemisphere. In the next case (4) are the long-eared European bats, with ears like curled leaves; and the American, African, and Australian varieties. The fifth case is filled with groups of the African and Indian taphozous; the South American tropical bats; and the West Indian chelonicteres and moormops. The last three cases, devoted to the varieties of the bat (6-8), contain those sub-families which are known as Flying Foxes, from their great size. These live on fruits, and inhabit Australia, and the southern countries of the eastern hemisphere.