Francais
Deutsch
Italiano
Refine Your Search
Turkey 1921 stock footage and images
- Showing 481 to 486 of 507 results
more
Hide
Dramatization: Sample of calcium arsenate examined at the government laboratory in United States.
Dramatization: Calcium arsenates spray to combat Boll Weevils in United States. A man addresses the people about the correct use of poison at the Deer Park. He says that only calcium arsenate should be used for the purpose. A man picks some calcium arsenate from a barrel and shows it to people. Men stand near barrels full of calcium arsenate. He puts a sample in a box, wraps it and sends it for its examination to the Government laboratory in Tallulah, La. Chemist determines the composition and fluffiness of the sample. Test glass tubes on the table. The grains studied under microscope and the chemist reports the result showing the certificate.
Dramatization: Government expert demonstrates the use of different dusting machines to people in United States.
Dramatization: Calcium arsenates spray to combat Boll Weevils in United States. A Government expert addresses the people about the use of different dusting machines at the Deer Park. He says that only the government approved machines should be used for the purpose. Men on engine power machine, the machine not suitable for the purpose of dusting. A cart duster can be used for the purpose. The cart duster is a two mule, two wheel and three nozzle machine. Man on a cart duster. Another man stands nearby. He sprays poison with the cart duster in a large field. Men stand near a one mule machine. Trees in the background. Small fields dusted by the one mule machine. Hand guns can be used where the horse-drawn machines cannot be used. Men dust pesticide on a small field with hand held dusting guns.
Dramatization: Government expert informs about the right time to poison the cotton in United States.
Dramatization: Calcium arsenates spray to combat Boll Weevils in United States. A Government expert addresses the people at the Deer Park. He says that the poisoning is not very costly. It increases the yield. When 10 to 15 percent of the squares are punctured, they should be poisoned. Man examines cotton in the field. Trees in the background.
Dramatization: Government expert informs people to spray poison on correct time to prevent Weevils from flying to other field.
Dramatization: Calcium arsenates spray to combat Boll Weevils in United States. A government expert addresses the people at the Deer Park. He says that the poisoning should be done on the correct time to prevent weevils from flying to distant fields. Man poisons the field. Trees in the background. He says that the dust should be sprayed enough to cover the field thoroughly. It will not cost too much. Man sprays the poison.
Dramatization: Government expert informs people about correct use of poison in United States.
Dramatization: Calcium arsenates spray to combat Boll Weevils in United States. A government expert addresses the people at the Deer Park. He says that the poisoning should be done when the poison will spread easily on the plants and not when there is heavy wind to blow away the poison. The applications of poison should be repeated every four days. Man poisons the field. Trees in the background. Hand points calendar. Weevil on cotton square. Men sit on a field and closely observe the weevils.
Dramatization: Government expert informs people how to poison fields correctly in United States.
Dramatization: Calcium arsenates spray to combat Boll Weevils in United States. A government expert addresses the people at the Deer Park. He says that a portion of the field should always be left untreated. Men work in the field. A one mule cart on the field. A house. The yield from the poisoned and the untreated part compared. Men, women and a child pick the cotton bolls. Men weigh the cotton to compare the difference. The government expert says that the plant should be poisoned correctly. Trees in the background. The meeting ends. People get up from their seats.
