Document rpp3aOzkrLvOKbxG7k8dEyX0r

April 2, 19*0 E** H . H . s chrenk, United States Bureau of Mines, Pittsburgh, Pennsylvania. Dear Dr. Schrenk* I should like to make a correction in the list of papers attached to my letter of February 16. The third paper, "Ex posure to Fluorides in Magnesium Founding and Its Significance* by Edward J . Largent, should also bear the name Ivan F . Ferneau. I shall appreciate it if you will add this name as a co-author. Cordially yours, Robert A. ehoe, M71V.' ef