National Geographic : 1939 Jan
THE NATIONAL GEOGRAPHIC MAGAZINE Photograph by B. Anthony Stewart JUICING PLANTS GULP GRAPEFRUIT BY THE TRUCKLOAD Factories for pressing juice from surplus fruit prevented glutting of markets when thousands of acres of new groves came into bearing a few years ago. Pasteurizing the juice does not injure its food value nor alter its taste. From the washing vat fruit is taken into the factory on conveyers. Photograph by Charles F. Holbrook A VAST SAFETY VALVE IS THIS DIKED CANAL IN FLOOD TIME To prevent the mighty Rio Grande from overflowing its Delta in early summer and autumn, when melting snows and September rains in the mountains send far more water than the stream bed can carry, U. S. engineers have constructed this walled North Floodway near La Villa. It "short circuits" the swollen river and conducts part of the floodwaters across country to the Gulf.