- Rediscovery of the Elements: Hafnium
- Article describing the search for element 72, the scientists involved, and the nationalist politics surrounding the discovery. Tourist information is included for areas significant to the history of hafnium. digital.library.unt.edu/ark:/67531/metadc111261/
- Rediscovery of the Elements: Aluminum
- Article describing the history of aluminum, from its use in alum to its isolation. Tourist information is given regarding locations pertinent to aluminum. digital.library.unt.edu/ark:/67531/metadc111212/