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SECTION l.-DOCUMENTARY,8mm. FILMS
(c) INDUSTRIAL
81711 The Romance of Stone 1 Reel
The story of Portland stone, from quarry to finished building. Blasting and digging ; transport ; final shaping and erection.
81716 In Search of Gold 1 Reel
Every operation in gold mining is shown in detail — from the setting np of a mine to testing, panning, etc.
83102 Bitunninous Coal 1 Reel
The working days of a miner ; how the air in a mine is kept pure and clean. Coal is taken to a coke plant, where it is crushed, washed and burned in great beehive ovens and in the modern retort ovens.
83104 Sand and Clay 1 Reel
In conjunction with "Limestone and Marble," this film gives an understanding of the "rocksoil" cycle in Nature, and of the commercial significance of minerals involved. Sand, glass and clay are considered.
83105 Limestone and Marble 1 Reel
Demonstrates the relationship between limestone, chalk and marble. Quarrying, carving and use of natural limestone, manufacture of artificial limestone (cement) and quarrying marble are shown.
83107 Wisconsin Dairies 1 Reel
Automatic milkers areshown, and themilk being prepared for market. Clean milk bottles are filled and capped by automatic machinery ; the milk is then shipped to the city in refrigerator and tank cars.
83110 Iron Ore to Pig Iron 1 Reel
Mining operations in the Mesabi range, showing methods used in obtaining iron ore from an open pit mine. Special loading and unloading machinery used at various American iron smelting towns. Molten pig iron is drawn off into ladles, poured into the casting machine and cast into "pigs."
83111 Pig Iron to Steel 1 Reel
Traces the progress of the ore through open hearth furnace, "blooming" mill and finishing mill to the finished product, steel.
Order by numbers. FOR PRICES SEE PAGE 3