3127.     ---------------.  [SCHUFF, -----.]  [Influence of the Reduction Conditions on the Activity of Thorium and Thorium-Magnesium Catalysts.]  FIAT Reel K-29, frames 7,136-7,138, 1938; PB 70,128; TOM Reel 296.

        Description of some tests on the experimental confirmation of old conceptions concerning the nature of the catalytic process, especially of the action of catalyst additions.  Some practical conclusions are drawn from the results.

        ----------.  See abs. 1171.