Note:  Do not rely on this information. It is very old.

Master

Master, a name sometimes given to the head of a College at the Universities. In the navy, a rank now disused. Previous, however, to 1866, the master was an officer ranking immediately below lieutenant. In that year masters were given the title of navigating-lieutenants. At present the class of navigating-lieutenants is undergoing gradual abolition, and ordinary lieutenants are assigned to specially undertake the navigation of ships.