Story of Lubricating Oil

Standard Oil in cooperation with USBM. Reel importance of lubricants to ma- 1 stresses chinery; shows by flow diagram principal steps in refining, removal of paraffin wax, removal of petrolatum. Reel 2 continues flow diagram; re- moval of undesirable constituents, purification of lubricating stocks. Shows manufacture of greases, and shows tests for viscosity, pour test, carbon residue, and demulsibility. 10,000 Feet Deep. (20 min) 16sd. Shell; Modern. Shows present day methods of oil exploration and oil drilling through the measure of time required for sound waves to travel to reach the earth's surface after striking various strata.