We should have supposed the expression, "_like mad_," a typographical error, if it had not been frequently used. We copy for the reader's amusement, a short chapter, containing an account of "_A Republic of Prairie Dogs_," a kind of quadruped, with which we, at least, in this portion of North America, are not very familiar. The harmony, vigilance and energy, with which these little brutes rally around their rights and their laws, might whisper a sage lesson even to the wisdom of rational and intellectual beings:-- A REPUBLIC OF PRAIRIE DOGS. On returning from our expedition in quest of the young Count, I learned that a burrow, or village, as it is termed, of prairie dogs, had been discovered on the level summit of a hill, about a mile from the camp. Having heard much of the habits and peculiarities of these little animals, I determined to pay a visit to the community. The prairie dog is, in fact, one of the curiosities of the far West, about which travellers delight to tell marvellous tales, endowing him at times with something of the politic and social habits of a rational being, and giving him systems of civil government and domestic economy, almost equal to what they used to bestow upon the beaver. The prairie dog is an animal of the coney kind, and about the size of a rabbit. He is of a sprightly mercurial nature; quick, sensitive, and somewhat petulant. He is very gregarious, living in large communities, sometimes of several acres in extent, where innumerable little heaps of earth show the entrances to the subterranean cells of the inhabitants, and the well beaten tracks, like lanes and streets, show their mobility and restlessness. According to the accounts given of them, they would seem to be continually full of sport, business and public affairs; whisking about hither and thither, as if on gossiping visits to each other's houses, or congregating in the cool of the evening, or after a shower, and gambolling together in the open air. Sometimes, especially when the moon shines, they pass half the night in revelry, barking or yelping with short, quick, yet weak tones, like those of very young puppies. While in the height of their playfulness and clamor, however, should there be the least alarm, they all vanish into their cells in an instant, and the village remains blank and silent. In case they are hard pressed by their pursuers, without any hope of escape, they will assume a pugnacious air, and a most whimsical look of impotent wrath and defiance.