+"Rio Piedras Puerto Rico" +1941 stock footage and images

Puerto Rican men drain mosquito infected ditches to fight malaria under National Youth Administration

Men transplant seedlings at the agricultural experimental station under National Youth Administration in Rio Piedras, Puerto Rico. A tree grown from a seedling. Men drain mosquito infested ditches to fight against malaria. Girls march to create awareness against malaria. Ditches cleaned up. (World War II period).