as if they were wrong-doers for wrongs committed by those in their employ on board ship or in the tavern, although of course committed without their knowledge. The true reason for this exceptional responsibility was the exceptional confidence which was necessarily reposed in carriers and innkeepers.[1] But some of the jurists, who regarded the surrender of children and slaves as a privilege intended to limit liability, explained this new liability on the ground that the innkeeper or ship-owner was to a certain degree guilty of negligence in having employed the services of bad men.[2] This was the first instance of a master being made unconditionally liable for the wrongs of his servant. The reason given for it was of general application, and the principle expanded to the scope of the reason.
The law as to ship-owners and innkeepers introduced another and more startling innovation. It made them responsible when those whom they employed were free, as well as when they were slaves.[3] For the first time one man was made answerable for the wrongs of another who was also answerable himself, and who had a standing before the law. This was a great change from the bare permission to ransom one's slave as a privilege. But here we have the history of the whole modern doctrine of master and servant, and principal and agent. All servants are now as free and as liable to a suit as their masters. Yet the principle introduced on special grounds in a special case, when servants were slaves, is now the general law of this country and England, and under it men daily have to pay large sums for other people's acts, in which they bad no part and
