Ships are fumigated at Baltimore Harbor in Baltimore, Maryland. Men at the harbor put a poisonous powder in a ship. A man puts the poisonous powder in a bucket, lifts it up and sprays it on the ship. The man covers the portion of a ship where the powder is sprayed. Another man with a cigarette in his mouth closes a door of the ship. Men at the harbor cover the ship. Dead rodents lying on the ship after the spray of the poisonous powder
The Panama Canal plagued by yellow fever during it's construction. United States Army Medical Corps working in a laboratory. Stagnant water and an alligator in the water in a jungle in Panama. Wreckage of DeLesseps French regime vessel or digging apparatus in a waterway near the canal dig. A portrait of United States Army Medical Corps Major Walter Reed. Men construct a railway track at the Panama Canal.
Construction of the Panama Canal. A view of the Panama Canal constructed by U.S. Army engineers. The engineers work at the Culebra Cut. A railroad train on tracks. Smoke comes out. A crane lifts up rubble. Two engineers stand and one of them holds a shovel in his hands. The engineers work at Gold Hill. They use a hydraulic excavation cylinder and spray. A view of the Culebra Cut before the water entered. A boat underway in the Culebra Cut. A spillway at Gatun Lake. Water is controlled by the spillway. A sign reads 'Gatun Locks'. A liner in Gatun Locks. People at the dock along the Panama Canal. A view of Panama City, with people and traffic on the streets. Buildings on a street of Panama City. Mountains in the background.
The benefits to farmers in the United States from the Inland Waterways Corporation System (IWC). Crops grown in a farm. Horses tow a harvest machine. Farmers on the harvesting machine. They harvest grains. A farmer rides a horse dawn carriage which is loaded with grain. A train on tracks. Smoke comes out from an engine. Grains come out of an elevator and are transfered to IWC barges. The barges at a seaboard terminal. Buildings in the background. Grains being unloaded from the barges at the sea board terminal.
Aviation history of the U.S. Army Air Corps in the United States. A young boy seated in a chair reads a book. Aircraft in formation flight. Orville Wright demonstrates an airplane at Fort Myer, Virginia in 1908 during its first public exhibition. Trees and mountains in the background. Orville sets a new world record. He is in the cockpit of a Wright aircraft. The aircraft takes off and is in flight. People at the field watch him. (This flight demonstration footage is a mix of September 1908 footage and July 1909 footage. It is 1908 as the aircraft is being walked out to prepare for takeoff and a single half-circle of canvas is seen in the front elevator. It is July 1909 footage taking off and in flight where the aircraft has two half-rounds of canvas in the front elevator)
A training film titled 'Gas and Gas Mask' shows how lethal gas is disseminated from gas cylinders and artillery shells in Europe by Germany during World War 1. German soldiers wearing gas masks move out from a trench through a screen of smoke or gas.The soldiers in prone positions advance through poisonous gas smoke and carry square shields. American forces demonstrate use of liquid fire (flame thrower) like that used by German troops to spray liquid fire in the trenches. Condensed gas in a cylinder. The cylinder lying on the ground in a horizontal position. A U.S. Army soldier wearing a gas mask opens the knob of the cylinder. The gas comes out. A gas cloud is formed and moves in the direction of the wind. A soldier holds a German gas shell. A large number of gas shells are exploded. A U.S. soldier demonstrates two different forms of gas masks. The first is a basic scarf which holds a small pad of cotton soaked in soda solution. He puts on the scarf mask. Next he puts on a more advanced "Gas helmet" (early gas mask).
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