821.    ----------------.  [EMMETT, P. H.]  Surface-Area Measurements a New Tool for Studying Contact Catalysts.  Advances in Catalysis, Academic Press, Inc., New York, 1948, vol. I, pp. 65-90.

     Critical discussion is presented of new developments in the theory and application of surface area measurements in connection with catalytic work.  Its application to the preparation of Fischer-Tropsch catalysts is introduced.