The southern tables include the numbers 24 to 30. The first table contains a very attractive collection of minerals, including the varieties of jasper; all kinds of opals--the sun opal, the semi-opal, wood opal, and wood partially opalised. The second table (25) is covered with varieties of Silicates of Lime, magnesia, and alumina; also soapstone, keffekil, or the meerschaum, highly esteemed by smokers, serpentine, chrysolite, &c. The third case (26) is devoted to Silicates of Zinc, magnesia, serium, copper, iron, bismuth, and other minerals; the fourth and fifth cases (27, 28) to zoolitic substances; the sixth case (29) to various minerals including samples of jade or nephrite, of which the tortoise, in the first room of this gallery, is manufactured; and the seventh case (30) to felspathic substances, including amazon stone from the Urals, and Labrador felspar. The northern cases are numbered from 31 to 37. In the first case (31) are varieties of felspar; in the second case (32) are micaceous and other mineral substances; in the third case (33) are basaltic hornblende, tremolite, &c.; in the fourth case (34) are varieties of asbestus, which defies the action of fire; jeffersonite; jenite from the Elba, &c.; in the fifth case (35) are various pyroxenic minerals; in the sixth case (36) are various kinds of garnets, including the lime and chrome varieties; and in the 37th case are the silicates, including beryls, and the emerald. Having brought his examination of the mineral kingdom to a conclusion, the visitor should notice the fossil zoophytes and shells from various deposits, arranged upon the other tables of the room. He will now leave the mineral kingdom, and advancing once more westward, will reach the fifth room of the gallery, which is entirely given up to various fossil remains. FOSSIL FISHES The first object that will arrest the visitor's attention on entering this fine apartment is the gigantic skeleton of the extinct elk of Ireland, which towers above every other object, from its pedestal, placed in the centre of the room. It is seven feet in height, and eight feet in length. The southern wall cases and the southern table cases of this room are covered with the fossil remains of various fishes. These are important to the student as exhibiting high forms of animal life that existed at the time of the formation of the most ancient strata in which organic remains have been discovered. The visitor will notice the perfect forms imprinted upon the various strata here exhibited.