Document VKKBambB3xeywYwQZqZxOn1v8

December 18, 1969 0. Fred Lee, Professor Water Chemistry _ University of Wisconsin f c- & Water Chemistry Laboratory Madison, Wisconsin 53706 Dear Dr, Lee: I am sending under separate cover today 500 milligram samples of 2,4' and 4,4' dichloroblphenyl. These, 1 am told, are about 955* purity. Samples referred to in Weingarten/s earlier publica tion have been exhausted for some time. Dr, Ellenburg is no longer with Monsanto. Best wiBhes for a happy holiday season. Very truly yours, EPWiJu Elmer P, Wheeler Manager, Environmental Health L ! Ml.E. X-, ftHLL.LLR DSW 162263 STLCOPCB4040873