The Mining Industry in North Carolina During 1902

The Mining Industry in North Carolina During 1903

Zircon, Monazite and Other Minerals Used in the Production of Chemical Compounds Employed in the Manufacture of Lighting Apparatus

Corundum and Its Occurrence and Distribution in the United States: (a Rev. and Enl. Ed. of Bulletin No. 180)

Proceedings of the 5th Annual Drainage Convention ...: 1912 ...

The Occurrence and Distribution of Corundum in the United States

Corundum and Its Occurrence and Distribution in the United States: (a Rev. and Enl. Ed. of Bulletin No. 180)

Corundum and Its Occurrence and Distribution in the United States: (a Rev. and Enl. Ed. of Bulletin No. 180)

Proceedings of the 8th Annual Drainage Convention: 1915 ...

Talc and Pyrophyllite Deposits in North Carolina

Corundum and Its Occurrence and Distribution in the United States: (a Rev. and Enl. Ed. of Bulletin No. 180)

The Mining Industry in North Carolina During 1906

Proceedings of the 9th Annual Drainage Convention ...: 1916

The Mining Industry in North Carolina During 1904

Proceedings of the 4th Annual Drainage Convention ...: 1911 ...

The Mining Industry in North Carolina During 1900

Public Roads are Public Necessities

The Occurrence and Distribution of Corundum in the United States,: Issues 180-184

The Mining Industry in North Carolina During 1905

The Mining Industry in North Carolina During 1907: With Special Report on the Mineral Waters