257.    BILLIG, R.  Studies on Solid Paraffin Hydrocarbons Which Originate in Gasoline Synthesis According to Fischer-Tropsch, and on Conversion of Produced Cracking Process Distillates Rich in Olefins Into Lubricating Oils.  FIAT Reel C268, 1939, frames 4687-4699; PB 73,606.

                  ---------------.  See abs. 1818, 1819.