Tourists visit Tahoe Tavern overlooking Lake Tahoe during a tour in the High Sierra region in California, States. Tourists stop by at the Tahoe Tavern (Tahoe Tavern Properties 300 West Lake Boulevard Tahoe City, CA). Original structure of Tahoe Tavern was burned down in the 1960s. A Southern Pacific train stops at Tahoe City. A bus reversing in front of Tahoe Tavern. Tourists crowd beside tour bus. Tour buses parked in front of Tahoe Tavern waiting for tourists to leave for Yosemite.
The steamship S.S. Tahoe is docked on Lake Tahoe, California. S.S. Tahoe ship sailing on Lake Tahoe. Two tourists on a motorboat. Tourists engage in aquatic sport on Lake Tahoe. Men waving from a speeding motorboat. Trees on the side of Lake Tahoe.
A Yosemite Transport System (YTS) stage drives up a rock-lined road from Yosemite. Conifer trees surround the mountainous roads. Scenic views of mountains and surrounding forests at Yosemite.
Orange trees growing in an orchard in California during the Great Depression. Walnut trees in a grove. Mountains surround a bean field. Clouds forming before a storm. Wheat stalks blowing in the wind. Lightning and thunder during a thunderstorm. Torrential rain floods a farmland. Soil erosion from flooding seen on a hillside. A farmer walks through land severely damaged by floods after a storm. A farmer and his wife survey the damage done to their orange grove after flooding. Various farmlands damaged by soil erosion. Muddy topsoil oozing and collapsing during heavy rain. Rain washing away the topsoil of land. Gullies forming from torrential rain. Topsoil being washed away in creeks. Rapids in creeks during heavy rain, pouring into rivers. Flood washing away an uprooted tree. Soil erodes from side of a river. Aerial view of topsoil pouring into the Pacific Ocean along the California Coast.
Film 'Story of Science' from International Library of Visual Aids. Acknowledgments and opening credits of the film as music plays in background.
Narrated feature about scientific advances made possible by the microscope. Light passes through a glass. Prism causes the light to reflect in other direction. Animated picture of magnifying lens. Workers making glassworks in the Bausch and Lomb Company in New York, mixing sand and glass and then stirring of the molten mass in a furnace. Prince Rupert test of a glass drop. The glass mixture is dropped on ground for test and hammered. Cooling of large pot containing molten glass. Large tongs used to remove clay pot from furnace, and then pot covered with insulating material. Pot broken away after glass is cooled . The big piece of glass is broken into small lenses. Workmen examining and choosing lenses for grinding. Grinding of lenses with polishing agents. Animated picture of lenses in a microscope and the change of the course of the rays of light to show the larger virtual image. Assembly of a microscope. Microscopic view of various germs including typhoid and diphtheria. An unborn chicken in an embryo, viewed through the microscope. Blood circulating in a frog's foot, through the microscope. Malignant blood cells. Crystallization of various chemical elements viewed in the microscope.