Hearne and Mackenzie speak of the White Wolf, a variety, originating not in the supposed morbid excitement to ordinary albinism, observed so generally in the various species, but rather from the action, whatever be the modus operandi of a high latitude. Mr. Warder, also, informs us, that the Wolves found in the United States vary considerably both in dimensions and in colour. In the northern states, they are yellowish or reddish-brown, with a black dorsal line; while more to the south, they are found entirely black. Great caution, therefore, seems necessary, that these mere varieties be not admitted into systematic catalogues as distinct species.

To the specific characters of the Red Wolf or AgouaraGouazou of d'Azara, as given in the text, we shall add nothing. Azara states that Agouara signifies the Fox, and Gouazou merely great, consequently, that the compound word implies that the animal is the largest of the Foxes.

This naturalist possessed one at about three months old, which was kept tied up. When any one approached, he would growl like the Dog, but in a more confused and louder manner. He lapped in drinking, and pressed his food under his fore-paws, while he tore it with his teeth; he was particularly fond of rats and small birds, and ate also of sugar-canes and oranges.

The figure is so like that of a Dog, that any one seeing it in the fields, without knowing it, would naturally take it for that species, for he has no other difference than in his mane and large erect ears, with their concavities turned in front; his legs, also, and figure are rather more slim. The mane, however, is a strong specific distinction, whence its scientific epithet jubatus.

He inhabits the low swampy lands, is a good swimmer, nocturnal in his habits, hunting solitarily, with much courage and agility, almost all other quadrupeds, even the stag.

This species seems much troubled with intestine worms, which has induced some exaggerated and ridiculous notions among the vulgar.

The Mexican Wolf, of a reddish-gray, mixed here and there with blackish, appears to be distinct, but it is not sufficiently described.

The Chacal is one of those species of the mammalia most widely extended throughout the warmer regions of the ancient world. It is found in Africa, from Barbary to the Cape of Good Hope; in Syria, in Persia, and throughout the entire of southern Asia. Intense cold alone seems to present a bar to its multiplication. Humid or dry climates, sheltered countries, or exposed and arid plains, appear to suit its constitution equally well, provided there be sufficient warmth. It is not less common on the frontiers of Sahara, than on the confines of Senegal, in the mountains of Abyssinia, than on the shores of the Persian Gulf. It would seem that this species had received from nature the faculty of modifying and conforming itself to circumstances in a more eminent degree than others, that it might perform a more extensive part in its destined occupation. The Feline, and some other Carnivora, disdain to touch any thing, except living prey, unless, indeed, while suffering the extremity of hunger; but the Chacals will feed on carcasses with avidity, and seem to partake, with the Hyænas and Vultures, the supposed office of ridding those countries, where life is most abundantly re-produced, of the remains of those organized bodies which, otherwise, would poison the atmosphere by their spontaneous decomposition.

All travellers, who have been in those countries where the Chacal is found, agree in mentioning the ravages occasioned by his voracity, and his dreadful nocturnal cries, which re-echoed by all the Chacals in the neighbourhood, produce the most discordant and lugubrious of all possible concerts, utterly depriving all hearers of repose, who have