Blueprint HABS NJ,10-Ring,1- (Sheet 12 of 13) - Frame Grist Mill, Route 30, Ringoes, Hunterdon County, NJ 1855 maps 5251682 Fort Columbus on Governor's Island

Fort Columbus on Governor's Island

Mangin finished the plan on a grand scale

It covers the former province of the Kingdom of Prussia from Heinsberg and Roermond south to Saarbrucken and east as far as Frankfurt

The Mediterranean with Adjacent Peoples from Hannibal's War to the Time of Mithridates the Great

These lines indicate cities whose longitude had been calculated with the aid of the newly invented marine chronometer

Blueprint HABS NJ,10-Ring,1- (Sheet 12 of 13) - Frame Grist Mill, Route 30, Ringoes, Hunterdon County, NJ 1855 maps 5251682 Fort Columbus on Governor's IslandFrame Grist Mill, Route 30, Ringoes, Hunterdon County, NJ