Unit Definition (agate line [Adobe])
Agate is a standard unit of measurement found primarily in newspaper advertising. There are 14 Agates per inch.

Unit Definition (arpent [France])
The Arpent is a traditional unit of distance in French-speaking nations. It was used as a land measurement, which is the reason for 'Arpentage' becomming the French word for surveying. It has an official definition of 191.835 English feet (58.471308 meters).