ETHYL CORP &lt;EY> UNITS COMPLETE ACQUISITON
  Ethyl Corp said its subsidiaries
  completed the acquisiton of Nelson Research and Development Co
  &lt;NELR>.
      The merger was approved following completion on Jan 27 of a
  tender offer valued at approximately 55 mln dlrs, the company
  said.
      It added that Nelson, based in Irvine, Calif., will be
  operated as a wholly-owned subsidiary of Ethyl.
      Nelson designs and develops new drugs, Ethyl said.
  

