National Geographic April 1963

Ships Through the Ages: A Saga of the Sea
From drifting log to nuclear freighter, from tribal catamaran to transatlantic liner and 100, 000- ton tanker – – this is the story of the evolution of the ship.
Niagara Falls, Servant of Good Neighbors
Straddling New York State and Canada, Niagara Falls tempts visitors with its majesty and sheer power – – enough to generate some four million kilowatts.
Miniature Monaco
Pinched between the Mediterranean and France, tiny Monaco thrives as a ritzy playground and an industrious tax haven.
Mystery of the Monarch Butterfly
How do monarch butterflies and their offspring migrate hundreds of miles during their short life spans to the same regions year after year?
Sweden, Quiet Workshop for the World
A model industrial European nation, Sweden pays homage to its traditions and culture while remaining a leader in all things modern.