which are arranged upon the central tables of the saloon. To explain the presence of coral in the midst of a zoological collection it is necessary to remind the visitor that this beautiful substance, which is chiefly a deposit of carbonate of lime, is also the fossil remains of that animal known to zoologists as the polypus. These polypi put forth buds, which remain attached to the parental polypus, and generate other buds; and in this way countless polypi, linked together, yet maintaining a separate and distinct existence, spread themselves over miles and miles of submarine rocks, in endless varieties of shape, and leave their remains to be dredged by the hardy fisherman, for the adornment of beauty. These beautiful polypi skeletons cluster in curious formations, as the visitor will perceive on examining the fine collection of corals before him.[1] Among the remarkable coral formations to which the general visitor's attention may be directed, are the sea-mushroom, the remains of a single polypus of great size; the brainstone, which presents a circular mass of long winding cells, and altogether has the appearance of the masses and veins of the brain; the sea-pen, and the sea-fan. In the cases, ranged together in the saloon, the visitor who feels interested in the infinite varieties of coral formation, will find specimens that-will give him a full idea of the architectural abilities of the active zoophytes that carry on their operations upon the rocks that lie not far below the surface of the ocean. From the coral tables, the visitor's way lies out of the Mammalia Saloon to the north, into a gallery of which all Englishmen who understand the value of a perfect museum, are justly proud. THE EASTERN ZOOLOGICAL GALLERY