USA 1856 : Free and Slave states

Reynolds's Political Map of the United States
Designed to Exhibit the Comparative Area of the Free and Slave States

Reynolds, William C.1856
Persuasive Maps: PJ Mode Collection
avec analyse et commentaire
http://digital.library.cornell.edu/catalog/ss:19343476

rappel : http://clioweb.canalblog.com/tag/persuasive
Persusive Maps, Cornell Library http://persuasivemaps.library.cornell.edu/