National Geographic : 1939 Dec
PUERTO RICO: WATCHDOG OF THE CARIBBEAN Photograph by E. John Long SACKING SALT TO c"BAG" MORE VISITORS FOR PUERTO RICO A cent a pound tax on all salt used is devoted to the development of island travel. In 1938-39 more than 19,000 persons spent their holidays in Puerto Rico. In the arid southwest, near Boquer6n, sea water is pumped into shallow lagoons and evaporated, leaving almost pure salt. Photograph by Edwin L. Wisherd AT FIRST GLANCE WATERMELONS SEEM TO GROW ON TREES So abundant and healthy are the giant papayas at the University of Puerto Rico's Agricul tural Substation in Isabela that supports had to be rigged to keep the trees from falling over. The papaya is a favorite breakfast fruit. The juice, fresh or canned, is becoming a popular drink.