The objections to such a decision as supposed in the case of an auctioneer do not rest on the general theory of liability, but spring altogether from the special exigencies of commerce. It does not become unjust to hold a person liable for unauthorized intermeddling with another's property, until there arises the practical necessity for rapid dealing. But where this practical necessity exists, it is not surprising to find, and we do find, a different tendency in the law. The absolute protection of property, however natural to a primitive community more occupied in production than in exchange, is hardly consistent with the requirements of modern business. Even when the rules which we have been considering were established, the traffic of the public markets was governed by more liberal principles. On the continent of Europe it was long ago decided that the policy of protecting titles must yield to the policy of protecting trade. Casaregis held that the general principle nemo plus juris in alium transferre potest quam ipse habet must give way in mercantile transactions to possession vaut titre. /1/ In later times, as markets overt have lost their importance, the Factors' Acts and their successive amendments have tended more and more in the direction of adopting the Continental doctrine. I must preface the argument from precedent with a reference to what has been said already in the first Lecture about early forms of liability, and especially about [101] the appeals. It was there shown that the appeals de pace et plagis and of mayhem became the action of trespass, and that those appeals and the early actions of trespass were always, so far as appears, for intentional wrongs. /1/ The contra pacem in the writ of trespass was no doubt inserted to lay a foundation for the king's writ; but there seems to be no reason to attribute a similar purpose to vi et armis, or cum vi sua, as it was often put. Glanvill says that wounds are within the sheriff's jurisdiction, unless the appellor adds a charge of breach of the king's peace. /2/ Yet the wounds are given vi et armis as much in the one case as in the other. Bracton says that the lesser wrongs described by him belong to the king's jurisdiction, "because they are sometimes against the peace of our lord the king," /3/ while, as has been observed, they were supposed to be always committed intentionally. It might even perhaps be inferred that the allegation contra pacem was originally material, and it will be remembered that trespasses formerly involved the liability to pay a fine to the king. /4/