Merrill, George Perkins The non -metallic minerals : their occurrence and uses / George Perkins Merril - New York : John Wiley and sons, 1905 - xi, 414 p. : ill.. xxxxii pl.(incl, front, maps ; 23 cm. Includes bibl, London, Chapman and Hall Subjects--Topical Terms: Ibn Khallikans--Biographical--Dictionaries Dewey Class. No.: 154