Laboratory test of the Weevils fed with poison and the poison washed away from dead Weevils in United States.
United States USA Date:1930 Duration:3 min 15 sec Sound:NO SOUND
Laboratory test of Weevils fed with toxic compounds in United States. Test glass containers with sand flooring, sprig of tender cotton plant moistened and poisoned. Chemists moisten the sprigs. They put poison on the sprigs. They examine the Weevils and keep a record of the Weevil. Dead Weevils picked and the poison is washed away. Man smokes cigar and picks the dead Weevils. A dead Weevil on a table.
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