By conferring the name of porcupine on the coendou, the same faculties have been attributed to him, especially that of shooting his quills. It is astonishing that naturalists and travellers should agree on this circumstance, and that Piso, who ought to have been less superstitious, as he was a physician, should gravely assert, that the quills of the coendou pierce into the flesh by their own power, and penetrate into the body even to the most internal viscera. Ray is the only person who has denied these circumstances, although they evidently appear to be absurd. How many absurdities have been exposed by men of sense, which, nevertheless, are affirmed by other men who think they are endowed with a greater degree of understanding! SUPPLEMENT. To our former account of this animal we may now add that there are two species of it in Guiana, the one larger than the other; the former weigh from twelve to fifteen pounds, and the latter about six: their principal food is the leaves of trees, in the holes of which the females bring forth their young; they commonly bring forth two at a time, and yet they are not very numerous. The negroes are very fond of their flesh and describe it as extremely good. From the account of M. de la Borde they are solitary animals, except in the season of love, when they go in pairs; they seldom venture to appear during the day, and they find a most inveterate enemy in the tiger who destroys them at every opportunity. THE URSON. This animal has never yet received a distinct name: placed by Nature in the desert part of North America, it exists in independence far distant from man, and has not even received from him a name, which is the first mark of an animal's subjection. Hudson having discovered the country where he inhabits, we shall give him a name which has an affinity with his first master, and which, at the same time, indicates his sharp bristly nature. It was likewise necessary to give him a name, that he might not be confounded with the porcupine or coendou, which he resembles in some few characters, but so materially differs from them in other respects that he ought to be looked upon as a different species. He is also a native of the northern climates, while the others particularly belong to that of the south.