Cox, Paul Ernest2017-05-122017-05-121905-08-02http://hdl.handle.net/10829/7505Cox mentions Arkansas parties and Pennsylvania deal. Also samples showing the blue effect of MnO.1 pageen-USEmploymentCox, Paul Ernest, 1879-1968Binns, Charles Fergus, 1857-1934ManganeseLetter from Paul E. Cox to Charles F. Binns, August 2, 1905Correspondence