§ Mr. LEES-SMITH
The number of established persons on the indoor and outdoor manipulative grades of the Post Office is approximately 106,700; and the number of full-time unestablished employés, including temporary staff, on these grades is approximately 3,900. There is no provision for advancing purely temporary employés to the establishment. New entrants to the established grades are normally appointed direct, but in some instances they may serve in a temporary unestablished capacity before appointment to the establishment. The circumstances, vary so greatly that it is impossible to state any average duration of such service.