Differs from other 1862 edition in including a list of new maps to the right of the map title as well as "Deviation of the magnetic needle . . ." and "Memoranda" describing the sources and projection used to make the map, and lacking the warning to th...
Differs from other 1862 edition in including a list of new maps to the right of the map title as well as "Deviation of the magnetic needle . . ." and "Memoranda" describing the sources and projection used to make the map, and lacking the warning to th...