852.    EUCKEN, A.  [Contact Catalysis.]  Naturwissenschaften, vol. 36, 1949, pp. 48-53, 74-81; Chem. Abs., vol. 44, 1950, p. 3777.

     Review dealing with general principles, dehydration and dehydrogenation of alcohols on metal oxides, and hydrogenation of unsaturated hydrocarbons on metals; many curves and tabulated data.