84 ([Return])
The title to all mines in Mexico rests solely upon discovery and improvement, without any regard to the proprietorship to the land on which the mines are located; but the proof of discovery and improvement must be made and recorded in the mineral courts, except in Sonora, where the ordinary courts have jurisdiction.
85 ([Return])
The proprietorship of mines in Mexico is acquired by proof being made to the mining court of discovery and actual working; and is again lost by an abandonment of four months; there is no other source of title to mineral lands.
86 ([Return])
This term is applied to all places distant from the capital.