Florida: Noralyn Phosphate Mine. Phosphate dredged up by giant drag line to use for fertilizing crops. In tanks, clay is drawn out of mixture. Man in control room. Sand and phosphate is separated in vats and machines. Lots of impressive looking mixing/separating devices on a grand scale. Big tanks, phosphate trundling along on conveyor belts. Train pulling the ore away from the plant. Agricultural machine using phosphate on the land.