NOTES ON ALUNITE, PSILOMELANITE, 

 AND TITANITE 



BY 



EDGAR T. WHERRY 



Assistant Curator, Division of Mineralogy and Petrology 



No. 2145. — From the Proceedings of the United States National Museum, 

 Vol. 51, pages 81-88 



Published October 16, 1916 



Washington 



Government Printing Office 



1916 



