In the event that Mallory and Copernicus are unavailable, two alternate typefaces are available via the free Google font service. They can be used on the web or downloaded for use in print by all users. The alternate typeface for Copernicus is Cormorant Garamond. The alternate typeface for Mallory is Lato.
Download Cormorant Garamond:
bit.ly/cormorant-garamond-font
Download Lato:
bit.ly/lato-font-family