Of course I was vexed at this shindy having taken place so early, as the quieter I kept myself the better; and I would have given five pounds to have been out of it. My wishing this only shews you never know what is coming; and something came out of this street fight that I never expected. SEA-LIONS. The domestication of a pair of 'sea-lions' at the Brighton Aquarium, and the subsequent addition, some few months ago, of a 'little stranger' to this interesting family circle, afford an opportunity for a brief description of some of the more prominent points in the structure and habits of these little-known animals. The name 'sea-lion,' to begin with, is by no means so inappropriate or far fetched as popular designations are usually found to be, when submitted to scientific criticism. For the 'sea-lion' is included by zoologists along with the seals and walruses in the great Carnivorous order of quadrupeds, to which, it need hardly be remarked, the lions, tigers, bears, dogs, and other flesh-eaters belong. The sea-lion is in fact a large seal, and seals and walruses are simply marine bears; and if we can imagine the body of a familiar bear to be somewhat elongated, and that the limbs were converted into swimming paddles, we should obtain a rough but essentially correct idea of the zoological position of the seals and their neighbours. But whilst the seals and sea-lions are united with the walruses to form a special group of carnivorous quadrupeds, adapted to lead a life in the sea, there exist some very prominent points of difference between the common seals and the less familiar sea-lions. The sea-lions and their nearest allies are thus sometimes named 'Eared' seals, from the possession of an outer ear; the latter appendage being absent in the common or True seals. And whilst the common seals waddle in a most ungainly fashion on land, the sea-lions are able to 'walk,' if not elegantly, at least with a better show of comfort than their more familiar neighbours. A glance at the structure of the sea-lion's feet, or better still, a comparison of its members with those of the seal, shews the reason of its greater skill and ability in progression on the land. The fore-limbs of the seal are, so to speak buried in the skin, below the elbow; only a small part of the fore-arm and hand being thus free from the body. The hind-limbs of the seals, again, exist in a permanently extended condition, and are disposed backwards in a line with the tail and body. The hind-limbs, moreover, are frequently united with the tail by means of a connecting fold of skin, and the whole hinder extremity of the body in a seal may thus be regarded as forming a large tail-fin. In swimming, the fore-limbs of the seal are applied closely to the sides of the body, and serve as rudders; whilst the hinder portion of the body, hinder limbs, and tail, constitute the swimming-organs--a work for which by their great flexibility they are perfectly adapted.