A U.S. crew uses their M31 tank retriever in attempts to rescue two pieces of armored equipment from the mud, near Hurtgen, Germany during World War II. They first recover a camouflaged M10 tank destroyer from a roadside ditch , using their cable attached directly to the load. In addition to mud, the M10 has some snow on it. Otherwise, the retrieved tank destroyer appears to be intact and undamaged. In the next scene, several recovery team members clamber over an M7 gun motor carriage (105 mm Self Propelled Gun). Its right tread has sunk completely , where the road surface has collapsed. (The previously retrieved M10 is seen,behind, on the road, with some snow still on it, apparently operating under its own power. ) Many infantrymen are seen in the background. Soldiers snake a retrieval cable around the M7. Troops then gather around as the retrieval efforts commence.
World War I scenes of U.S. Army airplanes in action at the front. A picture of U.S. Army Major Henry A. (Hap) Arnold and California Forester Kurt Dubois, who, together, started the fire patrol practice by United States Army aircraft in1919. Army flyers lined up on a field. Army Curtis JN-4 (Jenny) airplanes in flight as smoke rises from the forests below. Weighted messages with ribbons attached, being dropped by pilots while in flight to inform about a forest fire. Later on after the installation of radios a pilot sends a message on a radio set in case of a forest fire. In 1920s, Crawler tractors used to skid logs out of the forest. In 1925, tractor with a blade was developed and used to build forest roads. In 1932, a Bulldozer being used to create firebreaks during a Southern California fire. A fire plow in operation.
Importance of forest for wood supply and water for irrigation and health. Production film 'Good Turns for Our Forest'. View of America's forests of earlier years. View of dwindled American forest. View of a wood lumber processing mill with railroad trains hauling large timber to the mill. Forests provide wood supply to America and water for irrigation. River running through a forest. View of a dam with gates opened, for power generation. Children at a medical camp. Sign reads 'Children Open Air Preventorium 522 Chamber of Commerce Los Angeles California'. Children at the camp pose in a group standing on and near the camp entry fence. The children perform group calisthenic exercises. The boys and girls run and play around and on top of a small log cabin.
Film 'Lumbering in the North Woods' shows forests being converted to lumber in the United States. Animated map of United States shows Southern forests, Hardwood forests, Northern forests and Rocky mountain forests. View of the pine trees in Northern forests.
The lumber industry in forest areas of the United States. Animated map shows the Northern Forest, Hardwood Forest, Southern Forest, Rocky Mountain Forest and the Pacific Forest. Snow covered roofs at a lumber camp. Workers come out for their daily work. Horse drawn carts on a snow covered surface.
A World War 1 French Army staff car driving in the middle of a forest. Staff car front view of forest. Staff car maneuvers to avoid hitting a tree. A Renault FT tank in the middle of a forest. Staff car driving up an elevated ground, then races through the forest. Renault FT tanks moving through forest. Staff car driving out of the forest.