On our left are the Dining Rooms with the kitchens in the rear. The third room, set apart for cheap fish dinners (one of the features of the Exhibition), is to be decorated at the expense of the Baroness Burdett Coutts, and its walls are to be hung with pictures lent by the Fishmongers' Company, who have also furnished the requisite chairs and tables, and have made arrangements for a daily supply of cheap fish, while almost everything necessary to its maintenance (forks, spoons, table-linen, etc.) will be lent by various firms. The apsidal building attached is to be devoted to lectures on the cooking of fish. Having crossed the British Section, and turning to the right and passing by another entrance, we come upon what will be to all one of the most interesting features of the Exhibition, and to the scientific student of ichthyology a collection of paramount importance. We allude to the Western Arcade, in which are placed the Aquaria, which have in their construction given rise to more thoughtful care and deliberation than any other part of the works. On the right, in the bays, are the twenty large asphalt tanks, about 12 feet long, 3 feet wide, and 3 feet deep. These are the largest dimensions that the space at command will allow, but it is feared by some that it will be found somewhat confined for fast going fish. Along the wall on the left are ranged twenty smaller or table tanks of slate, which vary somewhat in size; the ten largest are about 5 feet 8 inches long, 2 feet 9 inches wide, and 1 foot 9 inches deep. In this Western Arcade will be found all the new inventions in fish culture--models of hatching, breeding, and rearing establishments, apparatus for the transporting of fish, ova, models and drawings of fish-passes and ladders, and representations of the development and growth of fish. The chief exhibitors are specialists, and are already well known to our readers. Sir James Gibson Maitland has taken an active part in the arrangement of this branch, and is himself one of the principal contributors. In the north of the Arcade, where it curves toward the Conservatory, will be shown an enormous collection of examples of stuffed fish, contributed by many prominent angling societies. In front of these on the counter will be ranged microscopic preparations of parasites, etc., and a stand from the Norwich Exhibition of a fauna of fish and fish-eating birds. Passing behind the Conservatory and down the Eastern Arcade--in which will be arranged algæ, sponges, mollusca, star-fish, worms used for bait, insects which destroy spawn or which serve as food for fish, etc.--on turning to the left, we find ourselves in the fish market, which will probably vie with the aquaria on the other side in attracting popular attention. This model Billingsgate is to be divided into two parts, the one for the sale of fresh, the other of dried and cured fish.