C. A. Hartnagel

1874

• The mining and quarry industries of New York State, 1937 to 1948
• Classification of the geologic formations of the state of New York
• Geologic map of the Rochester and Ontario beach quadrangles
• The mastodons, mammoths and other Pleistocene mammals of New York state
• The mining and quarry industries of New York State from 1919 to 1924