Mitchell's Key.

To the Study of Maps, comprising his Atlas, in a series of Lessons for beginners in Geography. Price, 17 cents.

Mitchell's High School Geography,

With an Atlas, (preparing,) will contain about 800 pages, and comprise a complete system of Mathematical, Physical, Political, Statistical and Descriptive Modern Geography, together with a Compendium of Ancient Geography, illustrated by Engravings executed by the first Artists of the country. The Atlas to accompany the above will contain not less than 30 Maps, constructed particularly for the work, and designed to correspond with and illustrate it in the most precise manner.

A Complete Key to Mitchell's School Geography,

BY J. E. CARROLL,

Containing full answers to all the Questions on Maps, with much additional information from the most recent and authentic sources. 12mo. half roan, $1 00.

A new and greatly Improved Edition of Mitchell's Universal Atlas.

Comprised in seventy-five imperial quarto sheets, on which are engraved, in the very first style of the graphic art one hundred and twenty-two Maps, Plans, and Sections. The MAPS represent all the known countries on the globe; the PLANS, the must prominent cities in the United States; and the SECTIONAL MAPS, the vicinities of the chief cities of Europe.

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.