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Dr. Robert Kehoe, Director, Kettering Laboratories, University of Cincinnati, Cincinnati, Ohio. . Dear Dr. Kehoe: V/e have written to Dr. Sappington relative to material of recent date on lead absorption. Dr. Sappington advised us to forward our request to you. Relative to the ceramic industry what material of recent date is there available on the lead problem, particularly as it relates to the absorption of lead silicate in human tissues. Your help and suggestions will be appreciated. Please advise. With kindest regards, I remain, Very truly yours, rf/as Russell Frank, Director, Safety and Personnel. KF 0015687