African coast is a torrid desert, because the dry trade wind there blows off the land without ceasing. It might be a relatively easy matter to sail southward on that steady breeze, but how was the voyage back to be accomplished by ships which could not sail near the wind like a modern chpper, and yet dared neither sail out on to the broad ocean across the wind, nor yet tediously tack their way home off a coast with no supplies of fresh food and water, in a time when the plague of scurvy had not yet been mastered?
Once the Portuguese had found the ocean-way into the Indian seas, they soon disposed of the opposition of the Arab dhows. Europe had taken its foes in rear; it had sailed round to the rear of the land, just as Xerxes, Alexander, Hannibal, and the Crusaders had marched round to the rear of the sea.
From that time until the opening of the Suez Canal in 1869, the seamen of Europe continued in ever-increasing number to round the Cape, and to sail northward on the Eastern Ocean as far as China and Japan. Only one ship, the Vega of the Swedish Baron Nordenskiold, has to this day made the passage round the north of Asia—with infinite risk, and in two years—and she happens not to have circumnavigated the Triple Continent,
