1. Works, printed or manuscript. 2. Documents and monuments. 3. Maps, plans, views, &c. 4. Natural sciences. 5. Ethnography. 6. Traditions and annals. 7. Chronology and astronomy. 8. Languages and philology. 9. Religion, mythologies, &c. 10. Civilization, laws and manners. The writers upon America are very numerous; but mostly defective or local. A number, however, have attempted to consider the whole continent: the principal among those containing facts upon all parts of America are chiefly Herrera, History and Geography of Spanish America carried till the year 1554. Delaet, Historical Geography of America, till 1630. Garcias, Origins of the Americans.—Spanish work. Carli, American Letters.—Italian work. Ogilby, History and Geography of America, till 1670. Raynal, European Settlements in America, till 1774. Alcedo, Geographical Dictionary of Spanish America in 1786.—Spanish work. Maltebrun, Improved Geography, 1820. Touron, History of America, chiefly ecclesiastical, and incomplete, 14 volumes 1768-70, in French. Robertson, false History of America or Spanish Conquests of Mexico or Peru. The collections of travels by Hackluyt, Purchas, Harris, Ramusio, Barcias, Prevost, &c. The American researches of Ulloa, Humboldt, M’Culloh, &c. I have consulted and analyzed all these general works, and many others of less account; but I have not yet read Hervas nor Compagnone, knowing them merely through quotations The first _Bibliotheca Americana_ or catalogue of writers on America, was given by Kennet in 1701 and 1713. Another appeared in England in 1719; a third in France in 1820. They contain the names, authors, editions, dates, &c. of over 300 works relating to America. Robertson has given a list of nearly as many, which he pretends to have consulted, although he neglected what they tell us. Humboldt has also a catalogue of 250 authors, consulted by him. In 1831, Aspinwall published his American Library containing 771 works; and Warden, in Paris, his own, containing 977 American works with 133 atlasses and maps. All this does not complete the account of books on America; since I have seen many omitted in all these catalogues; although I never could meet some mentioned there. I will carefully notice them, that it may be known where I found my materials, and what may yet have escaped my researches. I have already consulted upwards of 600 writers on both Americas, and there are at least 1000 already printed, I mean special or local works connected with history. If we were to add to these the botanists, naturalists, paltry compilers, and pamphlets, we might make a catalogue of 3000 works on America, her inhabitants and productions.