of beating beehives till they compel the bees to retire, and then feasting upon the sweet booty: in the same case with these, is the lizard with the double-keeled tail, known as the crocodilurus. The visitor next faces a case (7) of Serpent Lizards, which do not deserve their reputation for poisonous properties, being quite harmless: here, also, are the Skinks and other varieties, including the blind worms with their hidden legs. Having dismissed the serpent lizards, the visitor will notice the Night Lizards and Guanas. The former are inhabitants of warm climates, and from the ease with which they can adapt themselves to any positions, they may be troublesome visitors; they can run with ease about the walls and ceilings of rooms, like flies; and their propensity is to roam abroad in the darkness of the night. Their broad, ugly heads, and repulsive general appearance, have won for them the character of poisonous reptiles, but the truth is they are harmless. The Crested Lizards which the visitor will notice hereabouts, are the American fruit-eating species, celebrated for violent quarrelling among themselves, and for their power of changing colour with great rapidity. They do not crawl upon the earth, but live on trees, the fruits of which sustain them. Here, too, are the Anoles, with their distended toes, that enable them to imitate the crawling feats of the night lizards. The tenth case devoted to the lizard tribe, is the most interesting of the series. It contains the family of lizards known as the Agama. This family boasts many famous scions. First, here are the Indian dragons; their resemblance to the fabled monster slain by St. George, consists of a loose skin over the ribs, which they can open or fold at pleasure. These bat-like wings will not support them in the air, but serve to steady their bodies when leaping from branch to branch of a tree. From these lilliputian representatives of the monster of fable, the visitor's attention will most probably be called by an important-looking lizard, of which Mr. Allan Cunningham brought the first specimens to this country, from Port Nelson, Australia. We allude to the lizard with a frill round its neck, which has been universally likened to that worn by Queen Elizabeth: it is called the frilled agama. It is supposed that this harmless sauroid extends this frill to frighten away its enemies; as old ladies, who can preserve their presence of mind in the neighbourhood of a bull, open their umbrella to frighten it into an opposite direction. Under these interesting sub-families are grouped the varieties of a species of agama that has won for itself an imperishable reputation—having furnished imaginative minds with matter for the most extravagant speculations—and yielded to the political writer abundant sarcastic images. No politician who has thought proper in the course of a long career, to change his old principles for new ones (as housewives exchange worn-out apparel for new gilded pottery); no philosopher who has by turns embraced conflicting principles of human action; no man of science who has published two opposite theories of the formation of our universe, can pause without emotion before this case of classed Chameleons; for the politician, the philosopher, and the man of science have inevitably figured in hostile reviews under the head of colour-changing sauroids. The popular notion respecting the colour-changing powers of these lizards is, that at will the chameleon can habit itself in any colour of the rainbow; that by turns it is a red chameleon, a blue chameleon, a green chameleon, and a yellow chameleon. The fact of the case is very far-from this notion. Chameleons are found chiefly in Africa and India, but also in some of the tropical islands. In their habits they are sluggards, lounging generally about trees, and distending their long tongues covered with a glutinous secretion, to secure passing insects, upon which they subsist. They have eyes of wonderful power, and can look backwards and forwards at the same moment; but as regards their colour, it is well to assure the visitor, that their usual tint when resting in the shade is a blue-grey, which sometimes pales to a lighter grey, turns green, assumes a brown-grey tint, or darkens to a decided brown. These are the sober observations of observant naturalists on the subject.
