Ferromagnetic alloys in the system copper-manganese-indium

In a recent publication by Hames and Eppelsheimer on ferromagnetic manganese alloys,(1) reference was made to an article by S. Valentiner,(2) who has reported the existence of ferromagnetic alloys in the system Cu-Mn-In, with a maximum intensity of magnetization at the point Cu2MnIn. We have been working on this same system, and since the journal containing Valentiner's report is not available as yet, we wish to report some of the results of our work.