Investigation has shown that the Condor is merely a large, perhaps not the largest of the vultures. “The Condor,” writes Mr. Bennett, “forms the type of a genus, a second species of which is the _Vultur papa_ of Linnæus, the king of the vultures of British writers. They are both peculiar to the New World, but approach in their most essential characters very closely to the vultures of the Old Continent, differing from the latter principally in the large, fleshy, or rather cartilaginous, caruncle which surmounts their beaks, in the large size of their oval and longitudinal nostrils, placed almost at the very extremity of the cere; and in the comparative length of their quill feathers, the third being the longest of the series. The most important of these differences, the size and position of their nostrils, appears to be well calculated to add to the already highly powerful sense of smell possessed by the typical vulture, and for which the birds have been almost proverbially celebrated from the earliest ages. There is also a third species, the Californian vulture, two noble specimens of which, the only pair in Europe, are preserved in the London Zoological Society’s Museum, rivaling the Condor in bulk, and agreeing in every respect with the generic characters of the group, except in the existence of the caruncle, of which they are entirely destitute. “In size the Condor is little, if at all, superior to the Bearded Griffin, the Lämmergeyer of the Alps, with which Buffon was disposed conjecturally to confound it, but to which it bears at most but a distant relation. The greatest authentic measurement scarcely carries the extent of its wings beyond fourteen feet, and it appears rarely to attain so gigantic a size. M. Humboldt met with none that exceeded nine feet, and was assured by many credible inhabitants of the province of Quito that they had never shot any that measured more than eleven. The length of a male specimen somewhat less than nine feet in expanse was three feet three inches from the tip of the beak to the extremity of the tail; and its height, when perching with the neck partly withdrawn, two feet eight inches. Its beak was two inches and three quarters in length, and an inch and a quarter in depth when closed.