http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Oriented with south to the upper margin.
"Taken by the daguerretoype process exhibiting eight square miles circa 1851"--Verso of eastern sheet.
Reprint. Originally published: London : Appleyard & Hetling, [1851?].