Document 4J8D7ab5N6gLXg0Ljym2Djd0x

To Fr o m Su b j e c t ETHYL CORPORATION INTER-OFFICE Dr. Robert A. Kehoe Ad d r e s s Cincinnati George F. Kirby Ad d r e s s Baton Rouge Da t e November 1, 1968 Dear Bob: I received the progress report on lead in air thres holds, together with your cover letter. Dick Scales and I asked Dr. Roush to give us his views on the significance of this in formation and George has done a nice analytical job, as demon strated in the attached letter. Probably he will send a copy of these remarks to you, but in the event he does not do so, I thought I would pass this on. Sincerely, George Kirby GFK/mm Enc. N13353 HE 0 01238 2