This is the word properly descriptive of an injury to any one’s incorporeal hereditament, e. y., his right to an easement, or profit d prendre; au alter- native word being “disturbance.” Ou the other hand, “infringement” is the word prop- erly descriptive of au injury to any one’s patent-rights or to his copyright. But “ob- struction” is also a very general word in law, being applicable to every hindrance of a man in the discharge of his duty, (whether official, public, or private.) Brown.