Just a note to self…  To install fonts (in this example, the Arial family) on a Fedora system:

1. Log in as root
2. Change to the font storage directory:
   cd /usr/share/fonts
3. Create a subdirectory to hold the Arial family of fonts:
   mkdir arial
4. Copy the Arial fonts into that directory.
5. Make the font files accessible systemwide:
   chmod 0775 -R arial
6. Run fc-cache on the new directory to cache the new fonts:
   fc-cache arial

That should be it…