Plotting in Pirate Seas

The Boy With the U.S. Census

The Boy With the U. S. Fisheries

The Boy With the U. S. Foresters

The Boy With the U. S. Life-Savers

The Boy With the U.S. Miners

The Boy With the U. S. Survey

The Boy with the U. S. Weather Men

The monster-hunters

The Wonder of War on Land