OOn the classification of rocksOn the classification of rocksde M. Edward WadsworthEdiciones (1)On the classification of rocksinglésMás obras de M. Edward WadsworthThe elective system in technological schools1896Lithological studies1884TThe origin and mode of occurrence of the Lake Superior coppeThe origin and mode of occurrence of the Lake Superior copper-deposits1984
TThe origin and mode of occurrence of the Lake Superior coppeThe origin and mode of occurrence of the Lake Superior copper-deposits1984
