Document 70Egjk13XDg24jy1OzwxJ4Eyj

St. Louie Mr. F. J. p. Haywood Newport (Airmail) (Airmail) Mr.W.E.Hamer, Ruabon -----^iHr.V.H.Ritehie, Ruabon Dr.H.R.Newman, Run.bon Mr.S.H.Kullfay, Kruannrlcl December lT/51 Dr.D.3.Weddell, St.Louis Mr.F.T.Marshall, St.Loui: AROCLORSi TOXICITT Sine* writing ny note of Dee .11/51 I hare ehanoed to learn that Anniston people bad quite serious skin troublest bolls, blackheads and the like, among workers in Aroelors, especially 1269, around 1933* A little browsing into the literature reveals quite a history of akin troubles and liver troubles (Ineluding some fatal oases) attributed to heavy exposure to chlorinated diphenyls. The chlorinated diphenyls are stated to be worse than chlornaphthalene% and to be more harmful the more chlorine they oontaln. I still think, however, that the exposure In ordinary analytical work should not cause any trouble. S. Mather ta TOWOLDMONOQ49029