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June 26th,1930. Dr. R. B. hoore, Purdue University, Lafayette, Indians. Dear Dr. Moore: Under separate cover we are today shipping you approxinately 20 grams of our good phosphorescent sine sulphide. I mast caution you that this material contains a mere trace of radioactive materials, due to the fact that it has been manufactured in close proximity to netive radium operations, and would not be satisfactory as a screed Iree from all alpha radiation. The New Jersey courte start their nummer recess next weck, and we do not anticipate that we will have to appear in court to defend suits instituted by our former employees before some tine next fill - probably not before October. We shall advise you as soon os we have any definite information along this line. With kind regords, I am Sincerely yours, Vice President. HHBarker: RH