Per Industriam
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat. A qualified property in animals ferœ natures may be acquired per industriam, i. e., by a man's reclaiming and making them tame by art, industry, and education; or by so confining them within his own immediate power that they cannot escape and use their natural liberty.
2 Steph. Comm. 5.