Document 5DLBvMok9rL559B4njY2qjREV

Milt * nllltti Hit SEP 2 1 ppvn 'U September 18, 1959 Mr. Elmer P. Wheeler Monsanto Chemical Co. 800 N. Lindbergh Blvd. St. Louis 66, Mo. Dear Elmer: Many thanks for the report on the toxicity of Pydraul . A-200. This information is quite timely since our company is interested in the use of the above product. With best personal regards. Sincerely, LVC:DB Lester V. Cralley Chief Industrial Hygienist DSW 586062 STLCOPCB4091396