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June 26th,1930. Dr. R. B. Moore, Purdue University, Lafayette, Indiana. Dear Dr. Moore: Under separate cover we are today shipping you approximately 20 grams of our good phosphorescent zinc sulphide. I must 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 active radium operations, and would not be satisfactory as 5. screen free from all alpha radiation. The New Jersey courts start their summer recess next week, and we do not anticipate that we will have to appear in court to defend suits instituted by our former employees before some time next fall - probably not before October. We shall advise you as soon C.S we have any definite information along this line. With kind regards, I am Sincerely yours, Vice President. HHBarker:RH

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    "ocrText": "June 26th,1930.\nDr. R. B. Moore,\nPurdue University,\nLafayette, Indiana.\nDear Dr. Moore:\nUnder separate cover we are today shipping you\napproximately 20 grams of our good phosphorescent zinc sulphide.\nI must caution you that this material contains a\nmere trace of radioactive materials, due to the fact that it has\nbeen manufactured in close proximity to active radium operations,\nand would not be satisfactory as 5. screen free from all alpha\nradiation.\nThe New Jersey courts start their summer recess\nnext week, and we do not anticipate that we will have to appear\nin court to defend suits instituted by our former employees before\nsome time next fall - probably not before October. We shall\nadvise you as soon C.S we have any definite information along this\nline.\nWith kind regards, I am\nSincerely yours,\nVice President.\nHHBarker:RH"
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