2869.     ---------------.  [ROELEN, O.]  [Calculation of Yield for Higher Hydrocarbons Based on Recent Methods.]  TOM Reel 134, Navy 5811, Item Ib-4; Bureau of Mines Transl., February 1947, pp. 70-78.

        Methods for calculating the yield and related properties, discussed in item Ib-3, are developed further and compared with the methods employed in Government research.