The results of the latest geographical and nautical discoveries are to be found on the Maps including those of the most recent date by Wilkes, Nicollet, and Frémont. The geography of the different divisions of the Western Hemisphere is exhibited, with a fullness and completeness of detail, not to be found in any other work of the kind hitherto published in this country or elsewhere. Besides authentic delineations of all the States and Territories of the Union, in Counties, the Atlas contains correct Maps of the British North American Provinces, as well as of all the other North and South American States and Colonies; separate Maps of the Empires, Kingdoms, Republics, and smaller divisions of Europe; and of the principal Countries of Asia; also of Africa and Oceanica, the latter including the great insular divisions of Malaysia, Australasia, and Polynesia; besides a well engraved and coloured representation of the Heights of the principal Mountains in the world. Mitchell's new revised large Map of the United States, Containing the Counties in the States, distinctly defined, Railroads and Canals; handsomely coloured, and mounted on rollers. Mitchell's new revised Map of the World, on Mercator's Projection, Handsomely coloured, and mounted on rollers. Mitchell's Counting-House Map of the United States, On rollers and in pocket-book form, containing Railroads, Canals, &c. Mitchell's celebrated Pocket Maps Of each State in the Union, of England, and of North and South America. Mitchell's View of the Heavens, One volume, quarto, illustrated. (In preparation.) Mitchell's new Traveller's Guide through the United States, Containing the principal Cities, Towns, &c., alphabetically arranged; together with the Railroad Stage, Steamboat, and Canal Routes, with the distances, in miles, from place to place. Illustrated by an accurate Map of the United States. [Symbol: asterism] _Mitchell's Maps, throughout the United States, are well known to be the most accurate, and the best executed, of any published in this country._ URCULLU'S SPANISH GRAMMAR. A Grammar of the Spanish Language, based on the system of _D. Jose de Urcullu_; also with reference to the Publications of the Academy of Spain, the Works of Hernandez and Josse, and the Compendium of Don Augustin Munoz Alvarez, of the College of Seville. According to the seventh Paris edition of Urcullu's Works, by _Fayette Robinson_. Price, $1. Gramatica Inglesa, reducida a Veinte y dos Lecciones, por _D. Jose de Urcullu_. Edicion primera Americana de la Septima de Paris. Aumentada y Revista por _Fayette Robinson_. Price, $1. PICOT'S SERIES OF FRENCH SCHOOL BOOKS. No. 1. FIRST LESSONS IN FRENCH. Price, 50 cents. No. 2. FRENCH STUDENT'S ASSISTANT. Price, 25 cents. No. 3. INTERESTING NARRATIONS IN FRENCH. Price, 60 cents.