Horace Gray

“ And the relation of master and servant exists whenever the employer retains the right to direct the manner in which the business shall be done, as well as the result to be accomplished, or, in other words, 'not only what shall be done, but how it shall be done.' Railroad Co. ”

“ The general rules that must govern this case are undisputed, and the only controversy is as to their application to the contract between the defendant company and Corbett, the driver, by whose negligence the plaintiff was injured. A master is liable to third persons injured by negligent acts done by his servant in the course of his employment, although the master did not authorize or know of the servant's act or neglect, or even if he disapproved or forbade it. ”