Equal Polarization Atmosphere North & South Hemispheres 1854 Blackwood map Isles of Shoals naming the apocryphal Mountains of

naming the apocryphal Mountains of the Moon and the supposed course of the Niger river

(South America- Brazil- Chile- Peru)

Boston by Houghton Mifflin & Co

Insurance Book]

Equal Polarization Atmosphere North & South Hemispheres 1854 Blackwood map Isles of Shoals naming the apocryphal Mountains ofMap of Lines of Equal Polarization in the Atmosphere. (World Maps, Atmospheric Maps, Northern Hemisphere, Southern Hemisphere, Magnetic Zones). Issued 1854, Edinburgh by William Blackwood and Sons. Engraved by W & A. K. Johnston. Detailed and lovely large mid 19th century color lithographed folio map with piano key border. Fine decorative appeal. Well preserved, nice looking example with pleasing age patina. Original center fold as issued. Sheet