3627.     ---------------.  [WEIL, B. H.]  Shale Oil, Other Petroleum Substitutes, and Oil Shortage.  Interstate Oil Compact Commission, Quart. Bull., July 1943; Gas Age, vol. 92, No. 13, 1943, pp. 36, 62, 64; Gas, vol. 20, No. 1, 1944, pp. 36, 38.

        Approaching depletion of petroleum reserves makes it desirable to supplement United States petroleum production with the production of oil from shale, the Fischer-Tropsch synthesis, the hydrogenation of coal, or the blending of hydrocarbon fuels with alcohol.  Discussion deals chiefly with shale oil.