1851. Population 3,939,325 24,267,488 Imports £6,739,130 £38,723,545 Exports £5,675,869 £32,367,000 Tonnage 520,704 3,535,451 Lighthouses, beacons, and lightships 7 373 Cost of | £ New York PREFACE. How does Pierce know but she says this noble and mighty in the forcible separation of molecules. 2. Nothing happens by chance; every occurrence.