The portion open to the public of the gallery on this floor in the western wing of the building contains such of the Mammalian orders (apart from Proboscidea, Cetacea, and Sirenia) as are not shown in the lower gallery. In the first two wall-cases on the right on entering the gallery is displayed a series of Bats, some stuffed, and others in spirit. In the third wall-case are the Insect-eating Mammals (Insectivora), such as Shrew-mice, Moles, Hedgehogs, etc. Next come the Rodents, and then the Lemurs, Monkeys, and Apes, the greater number of the last being exhibited in the large case in the middle of the gallery. Among the more striking specimens may be mentioned the series of Gorillas (fig. 40) and Chimpanzees, and the Proboscis and Snub-nosed Monkeys. Nearly all the left side of this gallery is devoted to Anthropology, that is to say, to the representation of the zoological characters of the different races of Mankind[18]; the series including busts, skeletons, skulls, hair, and portraits. [Illustration: FIG. 40.--THE GORILLA (_Anthropopithecus gorilla_).] At the west end of the portion of this gallery open to the public stands a case exhibiting many of the structural differences distinguishing the man-like Apes from Man himself; and also showing different types of human skulls and the method of measuring the same. On the adjacent screens and partitions are diagrams, photographs, and sketches illustrating hand and finger prints, and identification by means of the latter. EAST WING. GROUND FLOOR. [Sidenote: Fossil Collection.] The ground floor of this wing consists, as on the other side of the building, of a gallery running west and east the whole length of the wing in front, of a smaller parallel gallery behind this, and leading from the latter a series of galleries running north and south. With the exception of a certain number of recent skeletons introduced for comparison, and some of the specimens of Elephants and Sirenians or Sea-Cows, the whole of this floor is occupied by the collection of the remains of animals and plants which flourished in geological periods previous to the one in which we are now living. Some of these belong to species still existing upon the earth, but the great majority are extinct. They are arranged mainly upon zoological principles, that is, the groups which are believed to have natural affinities are placed together; but within some of the great divisions thus mapped out, especially of the Invertebrata and Plants, it has been found convenient to adopt a stratigraphical or even geographical grouping, the fossils of different geological formations being kept apart, and those of the British Isles separated from those of foreign localities. This portion of the Museum is more fully described in the special Guides[19] than is possible in the present work. [Sidenote: Elephants, Sea-Cows, and Extinct Mammals.]