U.S. Government Weather Bureau: The bomb meter, a mercurial instrument for indicating atmospheric pressure per unit of surface. Rules for forecasting the weather and for measuring elevation. The anemometer is an instrument that registers the velocity of the wind. The weather vane, which electrically records the direction of the wind. Delicate instruments are housed in a shelter tower, and a triple register records their readings. Testing official thermometer for low temperature and accuracy. The Great Wheat Harvest of the U.S: The U.S. leads the world in wheat production, which is the most important of the cereal industries. Harvest hands leaving for the fields. Wheat farms of western states are largest in the world, some possessing 25,000 acres. These farms are divided into sections and worked by separate crews. One section of a North Dakota farm operating fourteen reapers. Modern machines will thresh from 1,500 to 2,000 bushels of wheat in a day. A novel device which threshes the standing grain and leaves the straw as fertilizer. Tractors are used to pull a combination reaper and thresher. Steamships transport the grain in huge elevators. Preparing for the winter crop. A tractor with eight plows. A young Dakotan with her heritage. Breeding Silver Foxes: Animals sought by trappers for their valuable fur are now scientifically raised on a big ranch. Some of the foxes are valued at $6,000 each. Arsenic Squads to Save Crops: Agricultural interests send men to destroy grasshoppers and army worms attacking crops. Mixing the poison. Mr. Grasshopper greedily eats the mixture.
—Moving Picture World synopsis