The next case (40) is devoted to the otter family. These ingenious animals are found in the four quarters of the world. Here are the common European otter; the otters of Java and India; the clawless African otter, from the Cape of Good Hope; and the sea and muffled otters, from America. Next to these interesting animals, are some of the bears, including the savage Arctic white bear, the Malay bear, and the Indian sloth bear. Next to these bears, the racoons are grouped, and they close the collection illustrative of the bear tribe. In the case following those which contain the racoons is one (43) in which the varieties of THE MOLE TRIBE are arranged. These include Moles from the four quarters of the world. There are the North American marsh moles and long-tailed star-nosed moles; the golden moles, from the Cape of Good Hope; the varieties of the shrew-mouse, including the remarkable blue shrew-mouse of India, the African elephant shrew, and the Russian musk shrew; the Javan insectivorous squirrel; and a curious variety of hedgehogs, from opposite quarters of the globe. Having examined these inferior mammalia, the visitor will pass in direct order of succession to the cases in which THE MARSUPIAL ANIMALS are deposited. These fill nine wall-cases, and they should be carefully examined, as exhibiting a peculiar economy of animal life. The marsupial animals are placed by some zoologists in the lowest class of mammalia. They include carnivorous, herbivorous, and insectivorous families, and their head-quarters appear to be Australia. In the first two cases (44, 45) which the visitor will examine, are the varieties of Australian phalangers; and here also are the New Holland bears, the Australian wombat, the flying squirrel of Norfolk Island, the flying phalangers; and in the right corner of the case are grouped those notable animals to which public curiosity has of late years been so keenly directed--the kangaroos. In the next five cases (46-51) the visitor will find more varieties of these strange, awkward-looking creatures. Here amid the kangaroos of Australia are the long-nosed, rock, and jerboa kangaroos, the New Guinea tree-kangaroo, and below, the Australian koala. The two next cases (52, 53) contain the varieties of Australian opossums, and below are the opossums of America. These close the attractions of the wall-cases, and the visitor should now glance round the saloon at the specimens of the varieties of THE SEAL TRIBE, which are arranged along the tops of the wall-cases. These include the leonine seal of the Southern Ocean, the Cape porpoise and dolphin, and the long-beaked dolphin of the Ganges. Having noticed these specimens, the visitor should proceed to examine the extensive collection of CORALS,