The Crystal Palace, Bird Cage Theatre and Tombstone Epitaph office are shown, all in Tombstone Arizona. View of an abandoned silver mine. Animation on map shows marking of the main Copper producing areas of Arizona, such as Jerome, Miami, Globe, Superior, Ray, Morenci, Bisbee, and Ajo. A huge new Cornelia open pit copper mine at Ajo is seen. Churn drill at work in mining. Men in mine field give signals to each other with flags prior to blasting. Large amount of dust is blown as the blast takes place. Giant electric shovels are used to load the ore on trains. The railroad trains distribute the ore to crushers. The electric crushers concentrate the ore. A factory site is also shown.
Mine workers board an elevator lift at the "Copper Queen" copper mine in Bisbee, Arizona, which also produces lead and zinc. Smoke arise from huge industrial chimneys of smelter plant smelting copper in nearby Douglas Arizona. Mining train emerges from mine on tracks and dumps raw material for copper. Workers move carts of ore by hand and dump them. Workers and mechanized diggers work at other non-metallic mines in Arizona. Mountainous region with dry soil is seen. View of Theodore Roosevelt Dam on the Salt River. Men lift wooden blocks to allow water flowing in canals and utilized for irrigation on farms in the Salt River Valley. Lettuce, tomato,carrot and cabbage fields are shown. A man puts a ladder up against and tree and picks citrus fruits from a tree such as oranges or grapefruits. A date tree in a date tree grove is hand pollinated. Close up view of hands of a farmer examining wheat crops and holding wheat in a field. A harvester operates in a barley field. Gunny bags of wheat piled in an area are moved by workers from a truck onto an automated mover. Men stack the bags. Huge stacks of bales of cotton and a man in hat and tie examining the raw cotton. Alfalfa plants shown in field and being baled. View of Coolidge Dam on the Gila River near Globe, Arizona. Imperial Dam on the lower Colorado River is shown next. View of Hoover Dam on the Colorado River. Hydroelectric generators and power lines are seen. Elevated view of Lake Mead. People wave from a motorboat on Lake Mead. Children splash and play in the lake water. A man in a small boat fishing on Lake Mead.
Cowboys riding on bucking broncos and horses in a rodeo in Phoenix Arizona. A joking man pretends to ride a stationary saddle mounted on a fence. Men and women on horseback riding on a desert trail among Sonora cactus and Saguaro Cactus plants. Close up view of the Saguaro cactus plants and flowers in bloom. Various flowers in bloom on different kinds of cactus in the spring in Arizona. A century plant in bloom. Entrance sign at the Coconino National Forest, and views of tall pine trees in the forest. Deer roaming in forest and a wild turkey in a field. Sheep graze on lands in Arizona. A wildfire in a forest in Arizona, with smoke filling the sky. Flames of the wildfire consume forest trees.
Cotton and rice fields in Texas. A house and trees in the background. Grapefruits orchards in the area. A man stands holding a basket full of fruits in the orchard. Grapefruit trees heavy with fruit. Winter wheat in Oklahoma, and corn farmers harvesting corn. View of harvested corn cobs being thrown into back of a truck bed. A horse on the farm. Men on a vehicle load cotton in Oklahoma.
The testing of oil for its lubricating efficiency in Indiana. Man performs the 'viscosity test' of the lubricating oil in a laboratory. This test measures the time required for a fixed quantity of oil to flow through an opening of certain size , at a predetermined temperature. Three test tubes on table with light, medium and heavy oil having low, medium and high viscosity respectively.
A man determines the carbon forming tendency of oil in Indiana. This is done through actual tests on a motor. A man collects the carbon from the motor and weighs it. Test tubes on table contain different oils to determine which oil forms what amount of carbon. Test tubes of oil number 1, 2, 3 and 4 on the table and the amount of carbon formed by them.
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