Section 13. Any person enrolled as a member of a corps of Volunteers, whether he shall have been elected or comm

13. Any person enrolled as a member of a corps of Volunteers, whether he shall have been elected or commissioned as an officer in such corps or not, may, except whilst on actual duty, quit the corps upon giving to the Officer Commanding the corps seven days' previous notice in writing of his intention so to do, or without such notice if the Commanding Officer of the corps shall consider it reasonable and allow him so to do.