(3)The cubicles should be unlocked at 5 A.M., in the summer (April to September) and 7 A.M. in the winter, when the roll will be called and the inmates will be paraded. The precise time for locking up of the cubicles will be left to the discretion of the Superintendent, provided it is never before 8 P.M. for the Star and Monitor Grades and 7 P.M. for the other grades, after a parade and roll-call of each grade immediately before the hours fixed ; provided also that no inmate shall be allowed to remain at large in the enclosure after dark, but shall be kept in a barrack, reading hall or school room the doors of which shall be locked.
