MARSH TREASURES

Reveals the hidden treasures of salt, sulphur, and oil buried beneath the plastic ooze along the Gulf of Mexico, demonstrating in diagram and live action how they are discovered, mined, and produced. Includes views of a crew on a marsh buggy, of miners in the depths of a salt dome, of sulphur wells, of molten mineral pouring from under the mire, and of a derrick boring into the muck for the black gold of oil.