Some three-fourths of the distance between America and Europe there is a group of nine beautiful islands called the Azores which belong to Portugal. Their names are Flores, Corvo, Fayal, Pico, S. Jorge, Graciosa, Terceira, S. Miguel, and Santa Maria. Many people think them to be the mountain peaks of the submerged continent, Atlantis, which long ago was covered by the ocean. There are ancient records which tell of Arabian caravels driven back by dangerous seas surrounding islands full of volcanoes. There are old pictures which portray seas of spouting geysers and flaming volcanic isles. In...