2846.     ---------------.  [ROELEN, O.]  [Alkali Resistance of Kieselguhrs.]  FIAT Reel K-29, 1938, frames 7,087-7,090; PB 70,218; TOM Reel 296.

        It is established by tests that no casual connection exists between the alkali resistance and the catalytic usefulness of kieselguhrs.  1 table and 3 diagrams.