Above the first landing the staircase divides into two flights, each leading to one of the corridors which flank the west and east sides of the hall and give access to the galleries of the first floor of the building. Near the southern ends of these corridors two staircases join to form a central flight leading to the second floor. On the landing at the top is a marble statue by Chantrey of SIR JOSEPH BANKS (b. 1743, d. 1820), who for 41 years presided over the Royal Society and was Trustee of the Museum. His botanical collections are preserved in the adjoining gallery, but his library of works on natural history, also bequeathed to the Museum, remains at Bloomsbury, where the statue, erected by public subscription in 1826, stood until it was removed to its present situation in 1886. On the wall above is displayed a series of unusually fine heads of Indian Big Game Animals, bequeathed by Mr. A. O. Hume, C.B., in 1912. [Illustration: FIG. 14.--A FEMALE OKAPI (_Okapia johnstoni_).] [Sidenote: African Antelopes.] The west, south, and east corridors contain a portion of the collection of mounted Mammals for which there is not room in the gallery immediately adjoining. The specimens placed here include a large number of species of the finest African Antelopes, animals remarkable for their beauty, for their former countless numbers, and for their threatened extermination in consequence of the inroads of civilized man into their domain. [Sidenote: Giraffes and Okapi.] In a case at the head of the staircase leading to the east corridor are several mounted specimens of Giraffes, and near by a skeleton of the same. Alongside the former is placed a case containing the heads and necks, together with skulls, of the various local races of Giraffes; while in a third are displayed three specimens of their near ally the Okapi (fig. 14) of the Congo Forest, as well as a skeleton of the same. [Sidenote: Collections of Humming-Birds.] The collection of Humming-Birds (_Trochilidæ_) arranged and mounted by the late Mr. John Gould, and purchased for the Museum in 1881, is principally shown in the vestibule leading from the hall to the Fish-gallery, but a few cases are placed on the pillars of the staircase. Another large collection of these birds, presented in 1913 by Mr. E. J. Balston, of Maidstone, is exhibited in the corridor leading to the Whale-room. WEST WING. The whole of the west wing of the building is devoted to the collections of recent Zoology. (A) GROUND FLOOR. [Sidenote: Bird Gallery.[8]] The ground floor is entered from the west side (left hand) of the central hall, near the main entrance of the building. The long gallery, extending the entire length of the front of the wing as far as the west pavilion, is assigned to the exhibited collection of Birds, the study-series of the same group being kept in cabinets in a room behind. [Sidenote: Systematic Series in Wall-cases.]