Laboratory test of Weevils fed with toxic compounds, Weevils examined at Edgewood Arsenal in United States. Man smokes cigar and inspects the plants. Plant toxicity test to note the effect of poison on plant. Man examines a poisoned Weevil. He notes down the results. Test tubes on table. Man tests the compounds and Weevils in the test tubes. A cotton farm.
Pests destroy crops and other plants in United States. Close view of Brown Tail, Gypsy Moths, Japanese and the Mexican Bean Beetles.
Sino-Soviet conflict over the Manchurian Chinese Eastern Railway. Representatives of International Commission prepare to travel to the Hailar Front in China. They place the flags of United States, japan, and France on the locomomotive before passing through Chinese lines. Snow covers the ground. The representatives of America, France and Japan, which include women, leave the staff headquarters of General Hu Yu Kun, Commander-in-Chief of the Western Front.
Bomb damage at station Puhetu in Manchuria, China. The club of employees and workmen of the Chinese Eastern Railway at station Puhetu which was damaged due to aircraft bombing on November 29, 1929. A dining car destroyed by a bomb from a Soviet airplane. The remains of an apartment of a railway employee at station Puhetu robbed by Chinese troops on November 29, 1929.
Private villages of Puhetu and Meintuhe in Manchuria, China after they had been pillaged by Chinese troops on 29 November, 1929. Heads of executed marauders hang from a stretched line. Snow covers the ground.
The construction of USS Los Angeles rigid airship by Zeppelin company in Friedrichshafen, Germany. The ship was made at the request of U.S. Navy Department. The chief component being used is duraluminum. Animation depicts the methods of duraluminum stampings and assembly of girders. The workers work at a workshop. Construction and erection of a frame ring. Animated model shows construction of nose and tail. Men carry assembled tail section frame and attach it to the rest of the skeleton.
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